Professor Mark Hopkinson

PhD, BSc

School of Electrical and Electronic Engineering

Departmental Director of Research & Innovation

Professor in Electrical Engineering

Headshot of Mark Hopkinson
Profile picture of Headshot of Mark Hopkinson
m.hopkinson@sheffield.ac.uk
+44 114 222 5385

Full contact details

Professor Mark Hopkinson
School of Electrical and Electronic Engineering
Profile

I received my BSc degree from the University of Birmingham and my PhD from the University of Sheffield for a thesis entitled “Properties of hydrogenated Amorphous Silicon Nanostructures”).

After three years as a PDRA at the University of Warwick working on SiGe epitaxy, I returned to Sheffield in 1990 to join the EPSRC National Centre for III–V Technologies, first as a PDRA and then as research fellow.

In 1988 I spent a half year working as a visiting researcher at the University of Minnesota. In 2000 I joined Marconi PLC as a senior scientist working on GaAs microwave devices.

In 2003, I returned to the University of Sheffield as a senior research fellow (staff) and in 2007 was awarded a personal chair.

My research is focussed on semiconductor epitaxy; a field in which I have published over 500 papers, made over 200 conference presentations, over 30 invited talks, produced several book chapters and a few editorials.

Around 15 of my publications have 100 citations. For over a decade I have served on the major conference steering committees in my field.

I have also received two international awards: a Pierre de Fermat fellowship from France and the Huang Kun Medal from the Beijing Institute of Semiconductors.

Starting with silicon MBE at Warwick University, I moved on to work on III-V materials from 1990 onwards and now have almost 30 years’ experience in MBE with particular emphasis on III-V semiconductor nanostructuring (including quantum dots, nanowires, selective area growth etc)

My current research interests include novel electronic materials, semiconductor nanostructures, electronics-photonics integration, ultrafast photonic devices and the application of photonics for sensing and healthcare applications.

Recent work has focussed on methods for the in-situ patterning of semiconductors, work which includes the EU Horizon 2020 project “Nanostencil” which I am coordinating.

The project is focused on the application of laser interference lithography to pattern semiconductor surfaces during the growth process. Other areas of activity include high speed semiconductor optical switching and novel quantum photonic devices.

Qualifications
  • PhD (Physics), Sheffield (1990)
  • BSc (Physics), Birmingham (1984)
Research interests
  • Semiconductor Epitaxy (MBE)
  • New methods for the growth, processing and characterisation of III-V nanostructures for
    advanced photonic and electronic devices
  • Ultrafast photonic devices
Publications

Books

  • Hopkinson M (2005) Microscopy of semiconducting materials. Springer Verlag. RIS download Bibtex download
  • Hopkinson M (1989) Photoluminescence in hydrogenated amorphous silicon based materials and heterostructures. RIS download Bibtex download

Journal articles

Chapters

Conference proceedings papers

  • Wang Y-R, Han IS & Hopkinson M (2023) Surface Nano-Structuring of Semiconductors by Nanosecond Pulsed Laser Interference. 2023 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO), 31 July 2023 - 4 August 2023. RIS download Bibtex download
  • Wang Y, Hopkinson M, Han IS, Behera S & Jin C (2020) Directed self-assembly of InAs quantum dots using in situ interference lithography. Quantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII, 1 February 2020 - 6 February 2020. RIS download Bibtex download
  • Francis H, Chen S, Che K-J, Zhang X, Hopkinson M & Jin C (2020) Generating optical frequency combs via nanoscale photonic structures. Physics and Simulation of Optoelectronic Devices XXVIII, 1 February 2020 - 6 February 2020. RIS download Bibtex download
  • Wang Y, Hopkinson M, Han IS & Jin C (2020) In-situ laser interference patterning of MBE growth surfaces. Laser-based Micro- and Nanoprocessing XIV, 1 February 2020 - 6 February 2020. RIS download Bibtex download
  • Behera S, Wang Y, Han IS, Jin C & Hopkinson M (2020) Fabrication of sub-micrometer periodic nanostructures using pulsed laser interference for efficient light trapping in optoelectronic devices. Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXV, 1 February 2020 - 6 February 2020. RIS download Bibtex download
  • Chen S, Francis H, Ho C-H, Che K, Wang Y, Hopkinson M, Zhang S, Jin C & Jin C (2018) Quality Factor Control in Laterally-Coupled Vertical Cavities. 2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO), 13 August 2018 - 17 August 2018. RIS download Bibtex download
  • Francis H, Chen S, Che K-J, Wang Y-R, Ho C-H, Hopkinson M, Jin C-Y & Jin C-Y (2018) Modulating Photonic Crystal Structures to Generate Optical Frequency Combs. 2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO), 13 August 2018 - 17 August 2018. RIS download Bibtex download
  • Breuer S, Rossetti M, Drzewietzki L, Montrosset I, Krakowski M, Hopkinson M & Elsaser W (2014) Investigations on photocurrent bi-stability of a two-color mode-locked quantum dot laser. 2014 16th International Conference on Transparent Optical Networks (ICTON), 6 July 2014 - 10 July 2014. RIS download Bibtex download
  • Zhang H, Ross IM, Hopkinson M, Zhang S & Walther T (2012) Quantum dot nucleation on focused ion beam patterned GaAs substrates. 15th European Microscopy Congress, Vol. 1(Physical Sciences: Applications) (pp 927-928). Oxford, 16 September 2012 - 21 September 2012. RIS download Bibtex download
  • Zhang, H , Ross, IM , Hopkinson, M , Zhang, S & Walther, T (2012) Study of controlled quantum dot formation on focused ion beam patterned GaAs substrates. IEEE-Nano2012, Vol. digital abstract booklet (pp 716-718). London, 20 August 2012 - 23 August 2012. RIS download Bibtex download
  • Revin DG, Commin JP, Cockburn JW, Zhang SY, Kennedy K, Krysa AB, Hopkinson M, Slight T, McKee A, Meredith W & Ironside C (2011) Recent progress in short wavelength quantum cascade lasers. 2011 IEEE Photonics Society Summer Topical Meeting Series (pp 57-58) RIS download Bibtex download
  • Revin DG, Commin JP, Cockburn JW, Zhang SY, Kennedy K, Krysa AB & Hopkinson M (2010) Short wavelength InP based quantum cascade lasers. Optics InfoBase Conference Papers RIS download Bibtex download
  • Revin DG, Commin JP, Cockburn JW, Zhang SY, Kennedy K, Krysa AB & Hopkinson M (2010) Short wavelength InP based quantum cascade lasers. Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference: 2010 Laser Science to Photonic Applications, CLEO/QELS 2010 RIS download Bibtex download
  • Araujo D, El Bouayadi R, Gutierrez M, Pastore CE & Hopkinson M (2009) InAs/GaAs quantum dots morphology: Nanometric scale HAADF simulations. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, Vol. 165(1-2) (pp 88-93) RIS download Bibtex download
  • Kudrawiec R, Latkowska M, Sek C, Misiewicz J, Ibanez J, Henini M & Hopkinson M (2009) Fine Structure of the Localized Emission from GaInNAs Layers Studied by Micro-Photoluminescence. ACTA PHYSICA POLONICA A, Vol. 116(5) (pp 930-932) RIS download Bibtex download
  • Lenz A, Eisele H, Timm R, Ivanova L, Sellin RL, Liu HY, Hopkinson M, Pohl UW, Bimberg D & Dahne M (2009) Limits of In(Ga)As/GaAs quantum dot growth. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, Vol. 246(4) (pp 717-720) RIS download Bibtex download
  • Marques FAM, Monte AFG & Hopkinson M (2009) Electric field effects on the carrier migration in self-assembled InAs/GaAs quantum dots. MICROELECTRONICS JOURNAL, Vol. 40(4-5) (pp 838-840) RIS download Bibtex download
  • Boyle SJ, Ramsay AJ, Kolodka RS, Oliviera JBB, Liu HY, Hopkinson M, Fox AM & Skolnick MS (2009) Two-colour photocurrent detection technique for coherent control of a single InGaAs/GaAs quantum dot. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, Vol. 246(4) (pp 824-827) RIS download Bibtex download
  • Haxha V, Garg R, Migliorato MA, Drouzas IW, Ulloa JM, Koenraad PM, Steer MJ, Liu HY, Hopkinson MJ & Mowbray DJ (2009) Empirical bond order potential calculations of the elastic properties of epitaxial InGaSbAs layers. MICROELECTRONICS JOURNAL, Vol. 40(3) (pp 533-536) RIS download Bibtex download
  • Hogg RA, Greenwood PDL, Childs DTD, Krstajic N, Kennedy K, Groom KM, Hugues M, Hopkinson M, Smith LE, Matcher SJ , Bonesi M et al (2009) GaAs Based Quantum Dot Superluminescent Diodes for Optical Coherence Tomography of Skin Tissue. 2009 4TH INTERNATIONAL CONFERENCE ON COMPUTERS AND DEVICES FOR COMMUNICATION (CODEC 2009) (pp 426-431) RIS download Bibtex download
  • Greenwood PDL, Jiang Q, Childs DTD, Zhang Z, Groom KM, Kennedy K, Hugues M, Hopkinson M & Hogg RA (2009) Broad-band High Power Quantum Dot Superluminescent Diodes. 2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2 (pp 604-605) RIS download Bibtex download
  • Krstajic N, Smallwood R, Childs DTD, Greenwood PDL, Hugues M, Kennedy K, Hopkinson M, Groom KM, Hogg RA, Smith LE , Matcher SJ et al (2009) Optical coherence tomography with high power quantum-dot superluminescent diodes. 2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2 (pp 207-208) RIS download Bibtex download
  • Ibanez J, Alarcon-Llado E, Cusco R, Artus L, Henini M & Hopkinson M (2009) Dilute (In,Ga)(As,N) thin films grown by molecular beam epitaxy on (100) and non-(100) GaAs substrates: a Raman-scattering study. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, Vol. 20 (pp 116-119) RIS download Bibtex download
  • Revin DG, Zhang SY, Commin JP, Cockburn JW, Kennedy K, Krysa AB & Hopkinson M (2009) Room Temperature InGaAs-AlAsSb Quantum Cascade Lasers Operating in 3-4 mu m Range. 2009 CONFERENCE ON LASERS AND ELECTRO-OPTICS AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2009), VOLS 1-5 (pp 844-845) RIS download Bibtex download
  • Boyle SJ, Ramsay AJ, Fox AM, Skolnick MS, Heberle AP & Hopkinson M (2009) Picosecond Coherent Control of Dressed States in a Single Quantum Dot. 2009 CONFERENCE ON LASERS AND ELECTRO-OPTICS AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2009), VOLS 1-5 (pp 2371-2372) RIS download Bibtex download
  • Haxha V, Garg R, Migliorato MA, Drouzas IW, Ulloa JM, Koenraad PM, Steer MJ, Liu HY, Hopkinson M & Mowbray DJ (2008) The use of Abell-Tersoff potentials in atomistic simulations of InGaAsSb/GaAs. OPTICAL AND QUANTUM ELECTRONICS, Vol. 40(14-15) (pp 1143-1148) RIS download Bibtex download
  • L. Judson PD, Groom KM, D. Childs DT, Hopkinson M, Krstajic N & Hogg RA (2008) Tuning Superluminescent Diode Characteristics for Optical Coherence Tomography Systems by Utilising a Multi-Contact Device Incorporating Chirped Quantum Dots. Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008. RIS download Bibtex download
  • Jin CY, Liu HY, Badcock TJ, Groom KM, Mowbray DJ, Hopkinson M & Wada O (2008) Novel, Simple Model for High Temperature Stability of InAs/GaAs Self-assembled Quantum Dot Lasers with Optimum p-type Modulation Doping. Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008. RIS download Bibtex download
  • D. Childs DT, Stevens BJ, Groom KM, Hopkinson M & Hogg RA (2008) Two Section Quantum Dot Lasers for Tuning and Modulation. Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008. RIS download Bibtex download
  • Mowbray DJ, Badcock TJ, Jang YD, Liu HY, Royce RJ, Nabavi E, Hogg RA, Skolnick MS, Hopkinson M, Park J , Lee D et al (2008) Development of Self-assembled Quantum Dot Lasers for Telecommunications Applications (Invited). Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008. RIS download Bibtex download
  • Lenz A, Eisele H, Timm R, Ivanova L, Liu HY, Hopkinson M, Pohl UW & Dahne M (2008) Structure of InAs quantum dots-in-a-well nanostructures. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 40(6) (pp 1988-1990) RIS download Bibtex download
  • Judson PDL, Groom KM, Childs DTD, Hopkinson M & Hogg RA (2008) multi-contact quantum dot superluminescent diodes for optical coherence tomography. 2008 IEEE PhotonicsGlobal at Singapore, IPGC 2008 RIS download Bibtex download
  • Liu HY, Hopkinson M, Groom K, Hogg RA & Mowbray DJ (2008) High-performance 1300-nm InAs/GaAs quantum-dot lasers. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 6909 RIS download Bibtex download
  • Bastiman F, Cullis AG, Hopkinson M & Green M (2008) Growth and in vivo STM of III-V Compound Semiconductors. MICROSCOPY OF SEMICONDUCTING MATERIALS 2007, Vol. 120 (pp 471-476) RIS download Bibtex download
  • Calvez S, Laurand N, Sun HD, Weda J, Burns D, Dawson MD, Harkonen A, Jouhti T, Pessa M, Hopkinson M , Poitras D et al (2008) GaInNAs(Sb) surface normal devices. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, Vol. 205(1) (pp 85-92) RIS download Bibtex download
  • Soong WM, Ng JS, Steer MJ, Hopkinson M, David JPR, Chamings J, Sweeney SJ, Adams AR & Allam J (2008) DARK CURRENT MECHANISMS IN BULK GaInNAs PHOTODIODES. 2008 IEEE 20TH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS (IPRM) (pp 345-348) RIS download Bibtex download
  • Childs DTD, Stevens BJ, Groom KM, Hopkinson M & Hogg RA (2008) Tuning and Modulation in Two Section Quantum Dot Lasers. 2008 IEEE PHOTONICSGLOBAL@SINGAPORE (IPGC), VOLS 1 AND 2 (pp 93-96) RIS download Bibtex download
  • Groom KM, Assamoi PJ, Hugues M, Roberts JS, Stevens BJ, Childs DTD, Alexander RR, Hopkinson M & Hogg RA (2008) 1.3 mu m Quantum Dot Self-Aligned Stripe Laser. 2008 IEEE PHOTONICSGLOBAL@SINGAPORE (IPGC), VOLS 1 AND 2 (pp 97-100) RIS download Bibtex download
  • Judson PDL, Groom KM, Childs DTD, Hopkinson M & Hogg RA (2008) Multi-Contact Quantum Dot Superluminescent Diodes for Optical Coherence Tomography. 2008 IEEE PHOTONICSGLOBAL@SINGAPORE (IPGC), VOLS 1 AND 2 (pp 104-106) RIS download Bibtex download
  • Krakowski M, Resneau P, Calligaro M, Hugues M, Hopkinson M, Gioannini M, Bardella P & Montrosset I (2008) High power, broad spectral width, 1300nm Quantum-Dot Superluminescent Diodes. 2008 IEEE 21ST INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (pp 23-24) RIS download Bibtex download
  • Childs DTD, Stevens BJ, Groom KM, Hopkinson M & Hogg RA (2008) Two Section Quantum Dot Devices for Tuning and Modulation. 2008 IEEE 21ST INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (pp 109-110) RIS download Bibtex download
  • Liew SL, Walther T, Irsen S, Hopkinson M, Skolnick MS & Collis AG (2008) Investigating the Capping of InAs Quantum Dots by InGaAs. MICROSCOPY OF SEMICONDUCTING MATERIALS 2007, Vol. 120 (pp 259-262) RIS download Bibtex download
  • Qiu Y, Walther T, Liu HY, Jin CY, Hopkinson M & Cullis AG (2008) Comparing InGaAs and GaAsSb Metamorphic Buffer Layers on GaAs Substrates for InAs Quantum Dots Emitting at 1.55 mu m. MICROSCOPY OF SEMICONDUCTING MATERIALS 2007, Vol. 120 (pp 263-268) RIS download Bibtex download
  • Judson PDL, Groom KM, Childs DTD, Hopkinson M, Krstajic N & Hogg RA (2008) Multi-Contact Quantum Dot Superluminescent Diodes for Optical Coherence Tomography. 2008 IEEE 21ST INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (pp 107-108) RIS download Bibtex download
  • Lam S, Chalcraft ARA, Szymanski D, Oulton R, Jones BD, Sanvitto D, Whittaker DM, Fox AM, Skolnick MS, O'Brien D , Krauss TF et al (2008) Coupled Resonant Modes of Dual L3-Defect Planar Photonic Crystal Cavities. 2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9 (pp 3020-3021) RIS download Bibtex download
  • Boyle SJ, Ramsay AJ, Fox AM, Skolnick MS, Liu HY & Hopkinson M (2008) Controlled-Rotation Quantum Logic Gate in a Single Self-Assembled Quantum Dot. 2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9 (pp 3175-3176) RIS download Bibtex download
  • Jones BD, Astratov VN, Oulton R, Lam S, Sanvitto D, Whittaker DM, Fox AM, Skolnick MS, Fry PW & Hopkinson M (2008) Whispering Gallery Modes in Quantum Dot Micropillar Cavities. 2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9 (pp 1722-1723) RIS download Bibtex download
  • Revin DG, Zhang SY, Steer MJ, Airey RJ, Krysa AB, Hopkinson M, Wilson LR, Menzel S & Cockburn JW (2008) Short-wavelength quantum cascade lasers - art. no. 69090V. NOVEL IN-PLANE SEMICONDUCTOR LASERS VII, Vol. 6909 (pp V9090-V9090) RIS download Bibtex download
  • Hasbullah NF, Ng JS, Liu HY, Hopkinson M, David JPR, Badcock TJ, Mowbray DJ, Sanchez AM & Beanland R (2008) Effects of spacer growth temperature on the optical properties of quantum dot laser structures - art. no. 68000U. DEVICE AND PROCESS TECHNOLOGIES FOR MICROELECTRONICS, MEMS, PHOTONICS AND NANOTECHNOLOGY IV, Vol. 6800 (pp U8000-U8000) RIS download Bibtex download
  • Monte AFG, Morais PC & Hopkinson M (2007) Electric field effect in the spin dynamics of self-assembled InAs/GaAs quantum dots. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Vol. 316(2) (pp E52-E55) RIS download Bibtex download
  • Ulloa JM, Celebi C, Koenraad PM, Simon A, Gapihan E, Letoublon A, Bertru N, Drouzas I, Mowbray DJ, Steer MJ & Hopkinson M (2007) Atomic scale study of the impact of the strain and composition of the capping layer on the formation of InAs quantum dots. JOURNAL OF APPLIED PHYSICS, Vol. 101(8) RIS download Bibtex download
  • Ibanez J, Henini M, Kudrawiec R, Misiewicz J, Schmidbauer M & Hopkinson M (2007) Optical characterization of (In,Ga)(As,N) thin films grown by molecular beam epitaxy on non-(100) GaAs substrates. JOURNAL OF CRYSTAL GROWTH, Vol. 301 (pp 552-555) RIS download Bibtex download
  • Barker SJ, Williams RS, Mulcahy CPA, Steer MJ, Hopkinson M, Ashwin MJ, Newman RC, Stavrinou PN, Parry G & Jones TS (2007) Spectroscopic evaluation of the structural and compositional properties of GaNxAs1-x superlattices grown by molecular beam epitaxy. THIN SOLID FILMS, Vol. 515(10) (pp 4430-4434) RIS download Bibtex download
  • Jin CY, Liu HY, Groom KM, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Photon coupling mechanism in 1.3-μm quantum-dot lasers. Conference on Lasers and Electro-Optics, 2007, CLEO 2007 RIS download Bibtex download
  • Blazek M, Breuer S, Gensty T, Elsäßer WE, Hopkinson M, Groom KM, Calligaro M, Resneau P & Krakowski M (2007) Intensity noise of ultrabroadband Quantum Dot Light Emitting Diodes and Lasers at 1.3 μm. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 6603 RIS download Bibtex download
  • Alexander RR, Childs D, Agarwal H, Groom KM, Liu HY, Hopkinson M, Hogg RA, Badcock TJ, Mowbray DJ, Skolnick MS , Ishida M et al (2007) Systematic study of the effects of δ-p-doping on 1.3μm Dot-in-well lasers. Conference on Lasers and Electro-Optics Europe - Technical Digest RIS download Bibtex download
  • Jin CY, Liu HY, Zhang SY, Airey R & Hopkinson M (2007) Very low-threshold-current-density 1.34-mu m GaInNAs/GaAs quantum well lasers with a quaternary-barrier structure. 2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5 (pp 2362-2363) RIS download Bibtex download
  • Hopkins JM, Preston RD, Maclean AJ, Calvez S, Sun H, Ng J, Steer M, Hopkinson M & Burns D (2007) High performance 2.2 mu m optically-pumped vertical external-cavity surface-emitting laser. JOURNAL OF MODERN OPTICS, Vol. 54(12) (pp 1677-1683) RIS download Bibtex download
  • Revin DG, Cockburn JW, Wilson LR, Steer MJ, Airey RJ, Hopkinson M & Krysa AB (2007) InGaAs-AlAsSb Quantum Cascade Lasers: Towards 3 mu m Emission. 2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5 (pp 492-493) RIS download Bibtex download
  • Jin CY, Liu HY, Groom KM, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Photon Coupling Mechanism in 1.3-mu m Quantum-Dot Lasers. 2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5 (pp 2340-2341) RIS download Bibtex download
  • Smowton PM, George AA, Sandall IC, Liu HY & Hopkinson M (2007) Identifying the origin of non-radiative recombination in ln(Ga)As quantum dot lasers. 2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 (pp 429-430) RIS download Bibtex download
  • Revin DM, Cockburn JW, Steer MJ, Zhang S, Wilson LR, Hopkinson M & Airey RJ (2007) Short wavelength InGaAs-AlAsSb-InP quantum cascade lasers. 2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 (pp 705-706) RIS download Bibtex download
  • Mowbray D, Badcock T, Sellers I, Ramsay A, Skolnick M, Liu HY, Hopkinson M, Groom K, Hogg R, Beanland R , Childs D et al (2007) Growth and characterization of multi-layer 1.3 mu m quantum dot lasers. INTERNATIONAL JOURNAL OF NANOSCIENCE, VOL 6, NOS 3 AND 4, Vol. 6(3-4) (pp 291-296) RIS download Bibtex download
  • Marshall ARJ, Tan CH, David JPR, Ng JS & Hopkinson M (2007) Fabrication of InAs Photodiodes with reduced surface leakage current - art. no. 67400H. OPTICAL MATERIALS IN DEFENCE SYSTEMS TECHNOLOGY IV, Vol. 6740 (pp H7400-H7400) RIS download Bibtex download
  • Tan CH, Mun SCLT, Vines P, David JPR & Hopkinson M (2007) The effects of monolayer thickness and sheet doping density on dark current and noise current in Quantum Dot Infrared Photodetectors - art. no. 67400J. OPTICAL MATERIALS IN DEFENCE SYSTEMS TECHNOLOGY IV, Vol. 6740 (pp J7400-J7400) RIS download Bibtex download
  • Kolodka RS, Ramsay AJ, Fry PW, Ng WK, Tahraoui A, Liu HY, Hopkinson M, Fox AM & Skolnick MS (2007) Coherent control of single quantum dot exciton embedded in a photodiode. JOURNAL OF MODERN OPTICS, Vol. 54(12) (pp 1717-1722) RIS download Bibtex download
  • Smowton PM, Sandall IC, Mowbray DJ, Liu HY & Hopkinson M (2007) Maximising the gain - Optimising the carrier distribution in InGaAs quantum dot lasers. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 6468 RIS download Bibtex download
  • Alexander RR, Childs D, Agarwal H, Groom KM, Liu HY, Hopkinson M, Hogg RA, Ishida M, Yamamoto T, Sugawara M , Arakawa Y et al (2007) Systematic study of the effects of modulation p-doping on 1.3 mu m InAs/GaAs dot-in-well lasers. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 517-520) RIS download Bibtex download
  • Choi TL, Ray SK, Zhang Z, Childs D, Groom KM, Stevens BJ, Liu H, Hopkinson M & Hogg RA (2007) Quantum dot superluminescent diodes - Bandwidth engineering and epitaxy for high powers. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 289-292) RIS download Bibtex download
  • Ng JS, Soong WM, Steer MJ, Hopkinson M, David JPR, ChamingS J, Adams AR, Sweeney SJ & Aiiam J (2007) Gainnas lattice-matched to GaAs for photodiodes. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 347-349) RIS download Bibtex download
  • Badcock TJ, Mowbray DJ, Nabavi E, Liu HY, Steer MJ, Hopkinson M, Hayne M, Nuytten T & Moshchalkov VV (2007) Electronic structure of long wavelength (> 1.3 mu m) GaAsSb-capped InAs quantum dots. Physics of Semiconductors, Pts A and B, Vol. 893 (pp 951-952) RIS download Bibtex download
  • Jin CY, Liu HY, Badcock TJ, Groom KM, Gutierrez M, Royce R, Hopkinson M & Mowbray DJ (2006) High-performance 1.3 mu m InAs/GaAs quantum-dot lasers with low threshold current and negative characteristic temperature. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 153(6) (pp 280-283) RIS download Bibtex download
  • Sandall IC, Walker CL, Smowton PM, Mowbray DJ, Liu HY & Hopkinson M (2006) Measurement of modal absorption, gain and recombination in p-doped and intrinsic quantum dot structures. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 153(6) (pp 316-320) RIS download Bibtex download
  • Mulcahy CPA, Barker SJ, Williams RS, Hopkinson M, Ashwin M, Stavrinou PN, Parry G, Biswass S & Jones TS (2006) RF-plasma source qualification and compositional characterisation of GaNAs superlattices using SIMS. APPLIED SURFACE SCIENCE, Vol. 252(19) (pp 7218-7220) RIS download Bibtex download
  • Timpson JA, Sanvitto D, Daraei A, Guimaraes PSS, Tahraoui A, Fry PW, Hopkinson M, Whittaker DM, Fox AM & Skolnick MS (2006) Polarisation control and emission enhancement of a quantum dot in ultra-high finesse microcavity pillars. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 32(1-2) (pp 500-503) RIS download Bibtex download
  • Zibik EA, Ng WH, Soulby MR, Wilson LR, Cockburn JW, Colley CS, Hebden JC, Delpy DT, Groom KM & Hopkinson M (2006) Broadband quantum cascade lasers and superluminescent diodes. Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006 RIS download Bibtex download
  • Groom KM, Ray SK, Alexander RR, Choi T, Kennedy K, Liu H, Hopkinson M & Hogg RA (2006) High-power and broad-band quantum dot SLDs for optical coherence tomography. Conference Digest - IEEE International Semiconductor Laser Conference (pp 47-48) RIS download Bibtex download
  • Ray SK, Alexander R, Kennedy K, Groom KM, Liu HY, Hopkinson M & Hogg RA (2006) Design, fabrication, and operating characteristics of broadband quantum dot superluminescent diodes. Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006 RIS download Bibtex download
  • Navaretti P, Jin C, Liu HY, Airey R & Hopkinson M (2006) Dilute nitride-based 1.3-mu m high-performance lasers - art. no. 61840D. Semiconductor Lasers and Laser Dynamics II, Vol. 6184 (pp D1840-D1840) RIS download Bibtex download
  • Smowton PM, Sandall IC, Walker CL, Thomson JD, Sobiesierski A, Badcock T, Mowbray DJ, Liu HY & Hopkinson M (2006) Characterisation of modulation doped quantum dot lasers. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 6133 RIS download Bibtex download
  • Smowton PM, Sandall IC, Mowbray DJ, Liu HY & Hopkinson M (2006) 1.3 mu m emitting, self assembled quantum dot lasers. 2006 IEEE LEOS Annual Meeting Conference Proceedings, Vols 1 and 2 (pp 867-867) RIS download Bibtex download
  • Goh YL, Massey DJ, Marshall ARJ, Ng JS, Tan CH, Hopkinson M & David JPR (2006) Excess noise and avalanche multiplication in InAlAs. 2006 IEEE LEOS Annual Meeting Conference Proceedings, Vols 1 and 2 (pp 787-788) RIS download Bibtex download
  • Aivaliotis P, Zibik E, Wilson LR, David JPR, Hopkinson M & Groves C (2006) Optimisation of quantum dot infrared photodetectors (QDIPs) for imaging applications. Electro-Optical and Infrared Systems: Technology and Applications III, Vol. 6395 (pp U102-U110) RIS download Bibtex download
  • Liu HY, Badcock TJ, Groom KM, Hopkinson M, Gutierrez M, Childs DT, Jin C, Hogg RA, Sellers IR, Mowbray DJ , Skolnick MS et al (2006) High-performance 1.3-mu m InAs/GaAs quantum-dot lasers with low threshold current and negative characteristic temperature - art. no. 618417. Semiconductor Lasers and Laser Dynamics II, Vol. 6184 (pp 18417-18417) RIS download Bibtex download
  • Ray SK, Groom KM, Beattie MD, Liu HY, Hopkinson M & Hogg RA (2006) Broad-band superluminescent light emitting diodes incorporating quantum dots in compositionally modulated quantum wells - art. no. 612907. Quantum Dots, Particles, and Nanoclusters III, Vol. 6129 (pp 12907-12907) RIS download Bibtex download
  • Lin JCC, Hogg RA, Hopkinson M, Fry PW, Ross IM, Cullis AG, Kolodka RS, Tartakovskii AI & Skolnick MS (2006) Size, areal density and emission energy control of InAs self assemble quantum dots grown on GaAs by selective area molecular beam epitaxy - art. no. 61290G. Quantum Dots, Particles, and Nanoclusters III, Vol. 6129 (pp G1290-G1290) RIS download Bibtex download
  • Gutierrez M, Hopkinson M, Liu HY, Herrera M, Gonzalez D & Garcia R (2005) Characterization of structure and defects in dot-in-well laser structures. MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, Vol. 25(5-8) (pp 793-797) RIS download Bibtex download
  • Liu HY, Sellers IR, Gutierrez M, Groom KM, Beanland R, Soong WM, Hopkinson M, David JPR, Badcock TJ, Mowbray DJ & Skolnick MS (2005) Optimizing the growth of 1.3-mu m InAs/InGaAs dots-in-a-well structure: Achievement of high-performance laser. MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, Vol. 25(5-8) (pp 779-783) RIS download Bibtex download
  • Gutierrez M, Hopkinson M, Liu HY, Tartakovskii AI, Herrera M, Gonzalez D & Garcia R (2005) Critical barrier thickness for the formation of InGaAs/GaAs quantum dots. MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, Vol. 25(5-8) (pp 798-803) RIS download Bibtex download
  • Bristow AD, Garcia-Deniz A, Fox AM, Whittaker DM, Skolnick MS, Krauss TF & Hopkinson M (2005) Reflection and emission of Brillouin zone edge states for active photonic crystal waveguides. JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, Vol. 7(6) (pp S270-S275) RIS download Bibtex download
  • Cullis AG, Norris DJ, Migliorato MA & Hopkinson M (2005) Surface elemental segregation and the Stranski-Krastanow epitaxial islanding transition. APPLIED SURFACE SCIENCE, Vol. 244(1-4) (pp 65-70) RIS download Bibtex download
  • Gutierrez M, Hopkinson M, Liu HY, Herrera M, Gonzalez D & Garcia R (2005) Effect of the growth parameters on the structure and morphology of InAs/InGaAs/GraAs DWELL quantum. JOURNAL OF CRYSTAL GROWTH, Vol. 278(1-4) (pp 151-155) RIS download Bibtex download
  • Migliorato MA, Powell D, Zibik EA, Wilson LR, Fearn M, Jefferson JH, Steer MJ, Hopkinson M & Cullis AG (2005) Anisotropy of the electron energy levels in InxGa1-xAs/GaAs quantum dots with non uniform composition. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 436-440) RIS download Bibtex download
  • Sellers IR, Liu HY, Badcock TJ, Groom KM, Mowbray DJ, Gutierrez M, Hopkinson M & Skolnick MS (2005) Lasing and spontaneous emission characteristics of 1.3 mu m In(Ga)As quantum-dot lasers. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 382-385) RIS download Bibtex download
  • Zibik EA, Wilson LR, Green RP, Bastard G, Ferreira R, Phillips PJ, Carder DA, Wells JPR, Skolnick MS, Cockburn JW , Steer MJ et al (2005) The polaronic nature of intraband relaxation in InAs/GaAs self-assembled quantum dots. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 408-412) RIS download Bibtex download
  • Liu HY, Badcock TJ, Sellers IR, Soong WM, Groom KM, Hopkinson M, Mowbray DJ & Skolnick MS (2005) Enhanced photoluminescence intensity of 1.3-mu m multi-layer InAs/InGaAs dots-in-well structure using the high growth temperature spacer layer step. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 129-132) RIS download Bibtex download
  • Gutierrez M, Hopkinson M, Liu HY, Ng JS, Herrera M, Gonzalez D, Garcia R & Beanland R (2005) Strain interactions and defect formation in stacked InGaAs quantum dot and dot-in-well structures. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 245-251) RIS download Bibtex download
  • Oulton R, Tartakovskii AI, Ebbens A, Finley JJ, Mowbray DJ, Skolnick MS & Hopkinson M (2005) Anomalous Stark shifts in single vertically coupled pairs of InGaAs quantum dots. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 302-307) RIS download Bibtex download
  • Zibik EA, Andreev AD, Wilson LR, Steer MJ, Green RP, Ng WH, Cockburn JW, Skolnick MS & Hopkinson M (2005) Effect of the electron population on intraband absorption in InAs/GaAs self-assembled quantum dots. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 105-109) RIS download Bibtex download
  • Migliorato MA, Steer MJ, Soong WM, Tey CM, Liu HY, Liew SL, Navaretti P, Norris DJ, Cullis AG & Hopkinson M (2005) Influence of In composition on the photoluminescence emission of In(Ga)As quantum dot bilayers. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 124-128) RIS download Bibtex download
  • Herrera M, Gonzalez D, Lozano JG, Hopkinson M, Gutierrez M, Navaretti P, Liu HY & Garcia R (2005) Defect generation in high In and N content GaInNAs quantum wells: unfaulting of Frank dislocation loops. Microscopy of Semiconducting Materials, Vol. 107 (pp 139-142) RIS download Bibtex download
  • Herrera M, Gonzalez D, Lozano JG, Hopkinson M, Gutierrez M, Navaretti P, Liu HY & Garcia R (2005) Activation energy for surface diffusion in GaInNAs quantum wells. MICROSCOPY OF SEMICONDUCTING MATERIALS, Vol. 107 (pp 279-282) RIS download Bibtex download
  • Gutierrez M, Hopkinson M, Herrera M, Gonzalez D & Garcia R (2005) Vertical correlation-anticorrelation transition in InAs/GaAs quantum dot structures grown by molecular beam epitaxy. Microscopy of Semiconducting Materials, Vol. 107 (pp 251-254) RIS download Bibtex download
  • Lin JCC, Ross IM, Fry PW, Tartakoskii AI, Kolodka RS, Hogg R, Hopkinson M, Cullis AG & Skolnick MS (2005) Microstructural studies of InAs/GaAs self-assembled quantum dots grown by selective area molecular beam epitaxy. Microscopy of Semiconducting Materials, Vol. 107 (pp 267-270) RIS download Bibtex download
  • Gutierrez M, Hopkinson M, Tartakovskii AI, Skolnick MS, Herrera M, Gonzalez D & Garcia R (2005) Effect of annealing on anticorrelated InGaAs/GaAs quantum dots. Microscopy of Semiconducting Materials, Vol. 107 (pp 255-258) RIS download Bibtex download
  • Tey CM, Cullis AG, Liu HY, Ross IM & Hopkinson M (2005) Structural analysis of the effects of a combined InAlAs-InGaAs capping layer in 1.3-mu m InAs quantum dots. Microscopy of Semiconducting Materials, Vol. 107 (pp 263-266) RIS download Bibtex download
  • Smowton PM, Walker CL, Sandall IC, Sellers IR, Mowbray DJ, Liu HY, Gutierrez M & Hopkinson M (2005) Growth and characterisation of multiple layer quantum dot lasers. Novel In-Plane Semiconductor Lasers IV, Vol. 5738 (pp 332-346) RIS download Bibtex download
  • Rybchenko SI, Itskevich IE, Cahill J, Tartakovskii AI, Skolnick MS, Hill G & Hopkinson M (2005) Electronic coupling between self-assembled quantum dots tuned by high pressure. PHYSICS OF SEMICONDUCTORS, PTS A AND B, Vol. 772 (pp 687-688) RIS download Bibtex download
  • Revin DG, Wilson LR, Zibik EA, Green RP, Cockburn JW, Steer MJ, Airey RJ, Hopkinson M, Offermans P, Koenraad PM & Wolter JH (2005) InGaAs-AlAsSb quantum cascade lasers emitting at 4.4 mu m. 2005 Conference on Lasers & Electro-Optics (CLEO), Vols 1-3 (pp 248-250) RIS download Bibtex download
  • Cullis AG, Norris DJ, Walther T, Migliorato MA & Hopkinson M (2005) The mechanism of the Stranski-Krastanov transition. Quantum Dots: Fundamentals, Applications, and Frontiers, Vol. 190 (pp 71-88) RIS download Bibtex download
  • Revin DG, Wilson LR, Zibik EA, Green RP, Cockburn JW, Steer MJ, Airey RJ, Hopkinson M, Offermans P, Koenraad PM & Wolter JH (2005) InGaAs-AlAsSb-InP quantum cascade lasers: Performance and prospects. 2005 International Conference on Indium Phosphide and Related Materials (pp 76-77) RIS download Bibtex download
  • Sellers IR, Liu HY, Mowbray DJ, Badcock TJ, Groom KM, Hopkinson M, Gutierrez M, Skolnick MS, Beanland R, Childs DT & Robbins DJ (2005) Growth and characterization of 1.3 mu m multi-layer quantum dots lasers incorporating high growth temperature spacer layers. Physics of Semiconductors, Pts A and B, Vol. 772 (pp 1547-1548) RIS download Bibtex download
  • Rybchenko SI, Itskevich IE, Andreev AD, Cahill J, Tartakovskii AI, Skolnick MS, Hill G & Hopkinson M (2004) High pressure as a tool to tune electronic coupling in self-assembled quantum dot nanostructures. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, Vol. 241(14) (pp 3257-3262) RIS download Bibtex download
  • Herrera M, Gonzalez D, Garcia R, Hopkinson M, Navaretti P, Gutierrez M & Liu HY (2004) Composition fluctuations in GaInNAs multi-quantum wells. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 151(5) (pp 271-274) RIS download Bibtex download
  • Navaretti P, Liu H, Hopkinson M, Gutierrez M, David JPR, Hill G, Herrera M, Gonzalez D & Garcia R (2004) Improvement in the optical quality of GaInNAs/GaInAs quantum well structures by interfacial strain reduction. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 151(5) (pp 301-304) RIS download Bibtex download
  • Herrera M, Gonzalez D, Garcia R, Hopkinson M, Navaretti P, Gutierrez M & Liu HY (2004) Structural defects characterisation of GaInNAs MQWs by TEM and PL. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 151(5) (pp 385-388) RIS download Bibtex download
  • Sun HD, Clark AH, Calvez S, Dawson MD, Liu HY, Hopkinson M, Navaretti P, Gutierrez M, Ng JS, David JPR , Gilet P et al (2004) Investigations of 1.55-mu m GaInNAs/GaAs heterostructures by optical spectroscopy. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 151(5) (pp 331-334) RIS download Bibtex download
  • Zibik EA, Wilson LR, Green RP, Wells JPR, Phillips PJ, Carder DA, Cockburn JW, Skolnick MS, Steer MJ, Liu HY & Hopkinson M (2004) Polaron relaxation channel in InAs/GaAs self-assembled quantum dots. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, Vol. 19(4) (pp S316-S318) RIS download Bibtex download
  • Finley JJ, Sabathil M, Oulton R, Tartakovskii AI, Mowbray DJ, Skolnick MS, Liew S, Migliorato M, Hopkinson M & Vogl P (2004) Systematic reduction of the permanent exciton dipole for charged excitons in individual self-assembled InGaAs quantum dots. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 21(2-4) (pp 199-203) RIS download Bibtex download
  • Zibik EA, Wilson LR, Green RP, Wells JPR, Phillips PJ, Carder DA, Cockburn JW, Skolnick MS, Steer MJ, Liu HY & Hopkinson M (2004) Polaron relaxation dynamics in InAs/GaAs self-assembled quantum dots. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 21(2-4) (pp 405-408) RIS download Bibtex download
  • Tartakovskii A, Cahill J, Whittaker D, Wells J-P, Fox M, Mowbray D, Skolnick M, Groom K, Steer M & Hopkinson M (2004) Long-lived spin coherence and temperature-induced dephasing in InAs quantum dots measured via quantum beats. Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, 2004. RIS download Bibtex download
  • Cullis AG, Norris DJ, O'Neill JP, Ross IM, Migliorato MA, Hopkinson M, Parbrook PJ, Wang T & Walther T (2004) Segregation in compound semiconductors: the Stranski-Krastanow epitaxial transition and electron beam damage processes. 13th European Microscopy Congress (EMC 2004), Vol. 2 (Materials Sciences) (pp 417-418). Herentals, 22 August 2004 - 27 August 2004. RIS download Bibtex download
  • Tartakovsk AI, Cahill J, Whittaker DM, Wells JPR, Fox AM, Mowbray DJ, Skolnick MS, Groom KM, Steer MJ & Hopkinson M (2004) Long-lived spin coherence and temperature-induced dephasing in InAs quantum dots measured via quantum beats. OSA Trends in Optics and Photonics Series, Vol. 97 (pp 667-668) RIS download Bibtex download
  • Ng BK, David JPR, Soong WM, Ng JS, Tan CH, Liu HY, Hopkinson M & Robson PN (2004) Low noise GaAs-based avalanche photodiodes for long wavelength applications. Device Research Conference - Conference Digest, DRC (pp 79-80) RIS download Bibtex download
  • Herrera M, Gonzalez D, Liu HY, Gutierrez M, Hopkinson M & Garcia R (2004) Composition modulation and growth-associated defects in GaInNAs/GaAs multi quantum wells. ELECTRON MICROSCOPY AND ANALYSIS 2003(179) (pp 103-106) RIS download Bibtex download
  • Walker CL, Sandall IC & Smowton PM (2004) Improved gain and loss performance of 1.3 mu m quantum dot lasers using high growth temperature GaAs Spacer layer. 2004 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 (pp 212-213) RIS download Bibtex download
  • Smowton PM, Pearce EJ, Lutti J, Matthews DR, Summers HD, Lewis GM, Blood P, Hopkinson M & Krysa A (2004) Carrier distribution, spontaneous emission and gain in self assembled quantum dot lasers. NOVEL IN-PLANE SEMICONDUCTOR LASERS III, Vol. 5365 (pp 86-95) RIS download Bibtex download
  • Liu HY, Sun HD, Navaretti P, Ng JS, Hopkinson M, Clark AH & Dawson MD (2004) 1.55-mu m GaInNAs/GaAs multiple quantum wells with GaInNAs quaternary barrier and space layer. SMIC-XIII: 2004 13th International Conference on Semiconducting & Insulating Materials (pp 189-193) RIS download Bibtex download
  • Zibik EA, Wilson LR, Green RP, Bastard G, Ferreira R, Wells JPR, Phillips PJ, Carder DA, Cockburn JW, Skolnick MS , Steer MJ et al (2004) Polaron decay and inter-level transfer in InAs/GaAs self-assembled quantum dots. 11TH INTERNATIONAL CONFERENCE ON PHONON SCATTERING IN CONDENSED MATTER, PROCEEDINGS (pp 2613-2616) RIS download Bibtex download
  • Zibik EA, Green RP, Wilson LR, Wells JPR, Phillips PJ, Carder DA, Cockburn JW, Steer NJ & Hopkinson M (2004) AlAs-like TO-phonon dephasing time in high al content AlGaAs. 11TH INTERNATIONAL CONFERENCE ON PHONON SCATTERING IN CONDENSED MATTER, PROCEEDINGS (pp 2686-2689) RIS download Bibtex download
  • Tartakovskii AI, Groom KM, Adawi AM, Lemaitre A, Mowbray DJ, Skolnick MS & Hopkinson M (2004) Dynamics of stimulated emission in InAs quantum dot laser structures measured in pump-probe experiments. ULTRAFAST PHENOMENA IN SEMICONDUCTORS AND NANOSTRUCTURE MATERIALS VIII, Vol. 5352 (pp 348-354) RIS download Bibtex download
  • Migliorato MA, Navaretti P, Norris DJ, Liew SL, Cullis AG, Liu HY, Steer MJ & Hopkinson M (2003) Optimisation of the optical emission of bilayers of quantum dots. MICROSCOPY OF SEMICONDUCTING MATERIALS 2003(180) (pp 103-106) RIS download Bibtex download
  • Gutierrez M, Herrera M, Ross I, Gonzalez D, Hopkinson M & Garcia R (2003) Characterization of InGaAs (N)/GaAsN multi-quantum wells using transmission electron microscopy. MICROSCOPY OF SEMICONDUCTING MATERIALS 2003(180) (pp 143-146) RIS download Bibtex download
  • Adawi AM, Zibik EA, Wilson LR, Lemaitre A, Sheng WD, Cockburn JW, Skolnick MS, Leburton JP, Hopkinson M, Hill G , Liew SL et al (2003) Observation of in-plane polarized intersublevel absorption in strongly coupled InGaAs/GaAs self assembled quantum dots. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, Vol. 238(2) (pp 341-344) RIS download Bibtex download
  • Koenraad PM, Bruls DM, Davies JH, Gill SPA, Long F, Hopkinson M, Skolnick M & Wolter JH (2003) Composition profiling at the atomic scale in III-V nanostructures by cross-sectional STM. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 17(1-4) (pp 526-532) RIS download Bibtex download
  • Houlihan J, Tanguy Y, O’Brien D, Huyet G, Smowton P, Pearce E & Hopkinson M (2003) Transverse mode structure of broad area quantum dot edge emitting lasers emitting at 1060 nm. Frontiers in Optics, 2003. RIS download Bibtex download
  • Smowton PM, Pearce EJ & Hopkinson M (2003) Carrier distribution and self heating in quantum dot and quantum well lasers. OSA Trends in Optics and Photonics Series, Vol. 88 (pp 684-685) RIS download Bibtex download
  • Harrison CN, David JPR, Groves C, Hopkinson M & Rees GJ (2003) Effect of temperature on the avalanche properties of sub-micron structures. COMPOUND SEMICONDUCTORS 2002, Vol. 174 (pp 263-266) RIS download Bibtex download
  • Bruls DM, Koenraad PM, Davies JH, Gill SPA, Long F, Hopkinson M, Skolnick M, Wolter JH & Devreese JT (2003) Direct composition proriling in III-V nanostructures by cross-sectional STM. PHYSICS OF SEMICONDUCTORS 2002, PROCEEDINGS, Vol. 171 (pp 77-84) RIS download Bibtex download
  • Cockburn JW, Wilson LR, Carder DA, Green RP, Revin DG, Hopkinson M, Steer MJ, Airey R & Hill G (2003) The effect of intervalley scattering on the performance of GaAs-AlAs quantum cascade lasers. PHYSICS OF SEMICONDUCTORS 2002, PROCEEDINGS, Vol. 171 (pp 117-123) RIS download Bibtex download
  • Smowton PM, Pearce EJ & Hopkinson M (2003) Carrier Distribution and Self Heating in Quantum Dot and Quantum Well Lasers. Optics InfoBase Conference Papers RIS download Bibtex download
  • Herrera M, Gutierrez M, Gonzalez D, Aragon G, Izpura I, Hopkinson M & Garcia R (2002) The role of climb and glide in misfit relief of InGaAs/GaAs(111)B heterostructures. MICROELECTRONICS JOURNAL, Vol. 33(7) (pp 559-563) RIS download Bibtex download
  • Fleischmann T, Ulloa JM, Moran M, Rees GJ, Woodhead J & Hopkinson M (2002) Characterisation of strained (111)B InGaAs/GaAs quantum well lasers with intracavity optical modulator. MICROELECTRONICS JOURNAL, Vol. 33(7) (pp 547-552) RIS download Bibtex download
  • Gutierrez M, Herrera M, Gonzalez D, Aragon G, Sanchez JJ, Izpura I, Hopkinson M & Garcia R (2002) Relaxation study of AlGaAs cladding layers in InGaAs/GaAs (111)B lasers designed for 1.0-1.1 mu m operation. MICROELECTRONICS JOURNAL, Vol. 33(7) (pp 553-557) RIS download Bibtex download
  • Matthews DR, Summers HD, Smowton PM, Rees P & Hopkinson M (2002) Analysis of quantum dot dynamics via q-switching. Nonlinear Optics: Materials, Fundamentals and Applications, 2002. RIS download Bibtex download
  • Wilson LR, Carder DA, Steer MJ, Cockburn JW, Hopkinson M, Chia CK, Hill G & Airey R (2002) Strategies for reducing the emission wavelength of GaAs-AlAs quantum cascade lasers. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 13(2-4) (pp 835-839) RIS download Bibtex download
  • Ashmore AD, Finley JJ, Oulton R, Fry PW, Lemaitre A, Mowbray DJ, Skolnick MS, Hopkinson M, Buckle PD & Maksym PA (2002) Optical properties of single charge tuneable InGaAs quantum dots. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 13(2-4) (pp 127-130) RIS download Bibtex download
  • Cullis AG, Norris DJ, Walther T, Migliorato MA & Hopkinson M (2002) Epitaxial island growth and the Stranski-Krastanow transition. CURRENT ISSUES IN HETEROEPITAXIAL GROWTH-STRESS RELAXATION AND SELF ASSEMBLY, Vol. 696 (pp 3-10) RIS download Bibtex download
  • Matthews DR, Summers HD, Smowton PM, Rees P & Hopkinson M (2002) Analysis of quantum dot dynamics via q-switching. Optics InfoBase Conference Papers (pp 334-336) RIS download Bibtex download
  • Smowton PM, Pearce EJ, Ning Y, Herrmann E & Hopkinson M (2001) Filamentation and linewidth enhancement factor In InGaAs quantum dot lasers. Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170), 11 May 2001 - 11 May 2001. RIS download Bibtex download
  • Herrmann E, Smowton PM, Ning Y, Summers HD, Blood P & Hopkinson M (2001) Optical mode loss and gain of multiple layer quantum dot lasers. Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170), 11 May 2001 - 11 May 2001. RIS download Bibtex download
  • Gutierrez M, Gonzalez D, Aragon G, Hopkinson M & Garcia R (2001) Effect of graded buffer design on the defect structure in InGaAs/GaAs (111)B heterostructures. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, Vol. 80(1-3) (pp 27-31) RIS download Bibtex download
  • Chen X, Dawson P, Godfrey MJ & Hopkinson M (2001) Temperature dependent optical properties of InAs/AlGaAs quantum dots. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, Vol. 224(1) (pp 107-110) RIS download Bibtex download
  • Yuan ZL, Foo ERAD, Ryan JF, Mowbray DJ, Skolnick MS & Hopkinson M (2001) Recombination of many-particle states in InAs self-organized quantum dots. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, Vol. 224(2) (pp 409-412) RIS download Bibtex download
  • Fry PW, Mowbray DJ, Itskevich IE, Skolnick MS, Barker JA, O'Reilly EP, Hopkinson M, Al-Khafaji M, David JPR, Cullis AG & Hill G (2001) Photocurrent spectroscopy of InAs/GaAs self-assembled quantum dots. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, Vol. 224(2) (pp 497-502) RIS download Bibtex download
  • Finley JJ, Lemaitri A, Ashmore AD, Mowbray DJ, Skolnick MS, Hopkinson M & Krauss TF (2001) Excitation and relaxation mechanisms in single In(Ga)As quantum dots. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, Vol. 224(2) (pp 373-378) RIS download Bibtex download
  • Yuan ZL, Foo ERAD, Ryan JF, Mowbray DJ, Skolnick MS & Hopkinson M (2001) Bandgap renormalization and carrier relaxation in self-organized InAs quantum dots. PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, Vol. 87 (pp 1131-1132) RIS download Bibtex download
  • Bruls DM, Vugs JWAM, Koenraad PM, Skolnick MS, Hopkinson M & Wolter JH (2001) Shape analysis of single and stacked InAs quantum dots at the atomic level by cross-sectional STM (pp 359-360) RIS download Bibtex download
  • Herrera M, Gutierrez M, Gonzalez D, Aragon G, Hopkinson M & Garcia R (2001) Barrier thickness influence on plastic relaxation in (111)B misoriented InGaAs/GaAs double quantum wells. MICROSCOPY OF SEMICONDUCTING MATERIALS 2001(169) (pp 133-136) RIS download Bibtex download
  • Gutierrez M, Gonzalez D, Aragon G, Hopkinson M, Fleischmann T & Garcia R (2001) Strain relaxation behaviour in InxGa1-xAs quantum wells on misorientated GaAs (111)B substrates. MICROSCOPY OF SEMICONDUCTING MATERIALS 2001(169) (pp 137-140) RIS download Bibtex download
  • Walther T, Cullis AG, Norris DJ & Hopkinson M (2001) How InGaAs islands form on GaAs substrates: the missing link in the explanation of the Stranski-Krastanow transition. MICROSCOPY OF SEMICONDUCTING MATERIALS 2001(169) (pp 85-88) View this article in WRRO RIS download Bibtex download
  • Lemaitre A, Finley JJ, Ashmore AD, Mowbray DJ, Skolnick MS, Itskevich IE, Hopkinson M & Krauss TF (2001) Optical spectroscopy of single InAs quantum dots: excitation and relaxation mechanisms. PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, Vol. 87 (pp 1195-1196) RIS download Bibtex download
  • Ng BK, David JPR, Tan CH, Plimmer SA, Rees GJ, Tozer RC & Hopkinson M (2001) Avalanche multiplication noise in bulk and thin AlxGa1-xAs (x=0-0.8) PIN and NIP diodes. PHOTODETECTORS: MATERIALS AND DEVICES VI, Vol. 4288 (pp 39-46) RIS download Bibtex download
  • Fry PW, Skolnick MS, Mowbray DJ, Itskevich IE, Finley JJ, Wilson LR, Schumacher KL, Barker JA, O'Reilly EP, Al-Khafaji M , Cullis AG et al (2001) Electronic properties of InAs/GaAs self-assembled quantum dots studied by photocurrent spectroscopy. PHYSICA E, Vol. 9(1) (pp 106-113) RIS download Bibtex download
  • Herrmann E, Smowton PM, Ning Y, Summers HD, Blood P & Hopkinson M (2001) Optical mode loss and gain of multiple layer quantum dot lasers. Optics InfoBase Conference Papers RIS download Bibtex download
  • Smowton PM, Pearce EJ, Ning Y, Herrmann E & Hopkinson M (2001) Filamentation and linewidth enhancement factor in InGaAs quantum dot lasers. Optics InfoBase Conference Papers RIS download Bibtex download
  • Mowbray DJ, Fry PW, Skolnick MS, Itskevich IE, Harris L, Ashmore AD, Finley JJ, Wilson LR, Schumacher KL, Barker JA , O'Reilly EP et al (2000) Electronic properties of InAs/GaAs self-assembled quantum dot structures and devices studied by photocurrent spectroscopy. ACTA PHYSICA POLONICA A, Vol. 98(3) (pp 279-293) RIS download Bibtex download
  • Mowbray DJ, Harris L, Fry PW, Ashmore AD, Parnell SR, Finley JJ, Skolnick MS, Hopkinson M, Hill G & Clark J (2000) InAs-GaAs self-assembled quantum dot lasers: physical processes and device characteristics. PHYSICA E, Vol. 7(3-4) (pp 489-493) RIS download Bibtex download
  • Fry PW, Itskevich IE, Mowbray DJ, Skolnick MS, Barker JA, O'Reilly EP, Wilson LR, Maksym PA, Hopkinson M, Al-Khafaji M , David JPR et al (2000) Photocurrent spectroscopy of InAs/GaAs self-assembled quantum dots: observation of a permanent dipole moment. PHYSICA E, Vol. 7(3-4) (pp 408-412) RIS download Bibtex download
  • Ozanyan KB, Parbrook PJ, Hopkinson M & Whitehouse CR (2000) Static and growing InP and InAs surfaces: reflection-anisotropy spectroscopy under the conditions of solid-source MBE. THIN SOLID FILMS, Vol. 364(1-2) (pp 6-11) RIS download Bibtex download
  • Fry PW, Itskevich IE, Mowbray DJ, Skolnick MS, Barker J, O'Reilly EP, Hopkinson M, Al-Khafaji M, Cullis AG, Hill G & Clark JC (2000) Quantum confined Stark effect and permanent dipole moment of InAs-GaAs self-assembled quantum dots. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, Vol. 178(1) (pp 269-275) RIS download Bibtex download
  • Yuan ZL, Foo ERAD, Ryan JF, Mowbray DJ, Skolnick MS & Hopkinson M (2000) Dynamical band gap renormalization in self-organized InAs/GaAs quantum dots. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, Vol. 178(1) (pp 345-348) RIS download Bibtex download
  • Ng BK, David JPR, Tozer RC, Rees GJ, Tan CH, Plimmer SA & Hopkinson M (2000) Low avalanche noise behaviour in bulk Al0.8Ga0.2As. 2001 IEEE INTERNATIONAL SYMPOSIUM ON COMPOUND SEMICONDUCTORS (pp 519-523) RIS download Bibtex download
  • Skolnick MS, Fry PW, Itskevich IE, Mowbray DJ, Barker JA, O'Reilly EP, Hopkinson M, Al-Khafaji M, Cullis AG, Hill C & Clark JC (2000) The stark effect and electron-hole wavefunctions in InAs-GaAs self-assembled quantum dots. OPTICAL PROPERTIES OF SEMICONDUCTOR NANOSTRUCTURES, Vol. 81 (pp 337-346) RIS download Bibtex download
  • Fry PW, Itskevich IE, Mowbray DJ, Sholnick MS, Barker JA, O'Reilly EP, Wilson LR, Larkin IA, Maksym PA, Hopkinson M , Al-Khafaji M et al (2000) Photocurrent spectroscopy of InAs/GaAs self-assembled quantum dots: Observation of a permanent dipole moment. SEMICONDUCTOR QUANTUM DOTS, Vol. 571 (pp 147-152) RIS download Bibtex download
  • Yuan ZL, Foo ERAD, Ryan JF, Mowbray DJ, Skolnick MS & Hopkinson M (1999) Many-body effects in carrier capture and energy relaxation in self-organized InAs/GaAs quantum dots. PHYSICA B, Vol. 272(1-4) (pp 12-14) RIS download Bibtex download
  • Hopkinson M, Sanchez JJ, Gutierrez M, Gonzalez D, Aragon G, Izpura I & Garcia R (1999) Optical properties of InxGa1-xAs/GaAs MQW structures on (111)B GaAs grown by MBE: dependence on substrate miscut. JOURNAL OF CRYSTAL GROWTH, Vol. 202 (pp 1085-1088) RIS download Bibtex download
  • Gutierrez M, Gonzalez D, Aragon G, Sanchez JJ, Izpura I, Hopkinson M & Garcia R (1999) Influence of substrate misorientation on the structural characteristics of InGaAs GaAs MQW on (111)B GaAs grown by MBE. THIN SOLID FILMS, Vol. 343 (pp 558-561) RIS download Bibtex download
  • McGow FJ, Martin RW & Hopkinson M (1999) Optical investigation of strain-balanced superlattices. SUPERLATTICES AND MICROSTRUCTURES, Vol. 25(1-2) (pp 413-417) RIS download Bibtex download
  • Al-Khafaji MA, Cullis AG, Hopkinson M, Mowbray DJ & Skolnick MS (1999) Effect of growth rate on the morphology and composition of InAs quantum dots grown on GaAs by MBE. MICROSCOPY OF SEMICONDUCTING MATERIALS 1999, PROCEEDINGS(164) (pp 111-116) RIS download Bibtex download
  • Al-Khafaji MA, Cullis AG, Hopkinson M, Wilson LR, Parnell SR, Mowbray DJ & Skolnick MS (1999) TEM nanoscale analysis of InAs quantum dots grown on GaAs by MBE. ELECTRON MICROSCOPY AND ANALYSIS 1999(161) (pp 585-588) RIS download Bibtex download
  • Itskevich IE, Trojan IA, Lyapin SG, Steer MJ, Wilson LR, Mowbray DJ, Skolnick MS, Hopkinson M, Eaves L & Main PC (1999) Excited states in self-assembled InAs/GaAs quantum plots under high pressure. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, Vol. 211(1) (pp 73-77) RIS download Bibtex download
  • Krier A, Chubb D, Krier SE, Hopkinson M & Hill G (1998) Light sources for wavelengths > 2 mu m grown by MBE on InP using a strain relaxed buffer. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 145(5) (pp 292-296) RIS download Bibtex download
  • Stallard WG, Plaut AS, Thoms S, Holland MC, Beaumont SP, Stanley CR & Hopkinson M (1998) Strain-induced quantum confinement of electron gases. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 2(1-4) (pp 272-276) RIS download Bibtex download
  • Li YB, Cockburn JW, Duck JP, Skolnick MS, Birkett MJ, Larkin IA, Hopkinson M, Grey R & Hill G (1998) Population inversion and intersubband electroluminescence in GaAs/AlGaAs triple barrier tunnelling structures. PHYSICA E, Vol. 2(1-4) (pp 473-477) RIS download Bibtex download
  • Wilson LR, Mowbray DJ, Skolnick MS, Harris L, Morifuji M, Larkin IA, Steer MJ & Hopkinson M (1998) Magneto-optical spectroscopy of InAs/GaAs self-organised quantum dots. PHYSICA E, Vol. 2(1-4) (pp 689-693) RIS download Bibtex download
  • Li YB, Cockburn JW, Larkin IA, Duck JP, Birkett MJ, Skolnick MS, Hopkinson M, Grey R & Hill G (1998) Inversion of electron sub-band population in a GaAs/AlGaAs triple barrier tunnelling structure. SOLID-STATE ELECTRONICS, Vol. 42(7-8) (pp 1533-1537) RIS download Bibtex download
  • Vodopyanov KL, O'Neill K, Serapiglia GB, Phillips CC, Hopkinson M, Vurgaftman I & Meyer IR (1998) Efficient intersubband-based SHG in semiconductor quantum wells. Technical Digest. Summaries of Papers Presented at the Conference on Lasers and Electro-Optics. Conference Edition. 1998 Technical Digest Series, Vol.6 (IEEE Cat. No.98CH36178), 3 May 1998 - 8 May 1998. RIS download Bibtex download
  • Parbrook PJ, Ozanyan KB, Hopkinson M, Whitehouse CR, Sobiesierski Z & Westwood DI (1998) Surface structure of InP(001) under dynamic and static conditions of molecular beam epitaxy. APPLIED SURFACE SCIENCE, Vol. 123 (pp 313-318) RIS download Bibtex download
  • Whitaker MF, Dunstan DJ & Hopkinson M (1998) Band offsets in near-GaAs alloys. COMPOUND SEMICONDUCTORS 1997, Vol. 156 (pp 279-282) RIS download Bibtex download
  • Chia CK, David JPR, Rees GJ, Plimmer SA, Hopkinson M, Grey R & Robson PN (1998) Avalanche multiplication in sub-micron AlxGa1-xAs/GaAs heterostructures. 1997 IEEE INTERNATIONAL SYMPOSIUM ON COMPOUND SEMICONDUCTORS (pp 391-394) RIS download Bibtex download
  • Kim S, Cho W, Zhang X, Hopkinson M & Gopinath A (1998) Design of polarization insensitive semiconductor optical amplifiers at 1300 nm. Optics InfoBase Conference Papers (pp 324-326) RIS download Bibtex download
  • Al-Khafaji MA, Cullis AG, Hopkinson M, Mowbray DJ, Migliorato M, Wilson LR, Skolnick MS & Whitehouse CR (1998) TEM observations of the variation in the configuration of self-assembled InAs quantum dots on GaAs. ELECTRON MICROSCOPY 1998, VOL 3 (pp 371-372) RIS download Bibtex download
  • Boroumand FA, Jostock M, Hopkinson M, Kordos P, Weber E & Swanson JG (1997) Electrical behaviour of GaAs MESFETs formed on high and low temperature GaAs buffer layers. Workshop on High Performance Electron Devices for Microwave and Optoelectronic Applications, EDMO (pp 303-308) RIS download Bibtex download
  • Plaut AS, Patel S, Stallard WG, Hawrylak P, Lage H, Grambow P, Heitmann D, von Klitzing K, Thoms S, Holland MC , Beaumont SP et al (1997) Magneto-optics of zero-dimensional electron systems. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 1(1-4) (pp 191-197) RIS download Bibtex download
  • Hopkinson M & David JPR (1997) Incorporation of As-2 in InAsxP1-x and its application to InAsxP1-x/InP quantum well structures. JOURNAL OF CRYSTAL GROWTH, Vol. 175 (pp 1033-1038) RIS download Bibtex download
  • Griffin P, Ballard I, Barnham K, Nelson J, Zachariou A, Button C, Hopkinson M & Pate M (1997) Advantages of quantum well solar cells for TPV. Third NREL Conference on thermophotovoltaic generation of electricity RIS download Bibtex download
  • Martin RW, McGow F, Hopkinson M & David JPR (1997) All-optical modulation near 1.55 mu m using In1-x-yGaxAlyAs coupled quantum wells. COMPOUND SEMICONDUCTORS 1996(155) (pp 539-542) RIS download Bibtex download
  • Ghin R, David JPR, Hopkinson M, Pate MA, Rees GJ, Robson PN, Herbert DC, Higgs AW & Wight DR (1997) Impact ionisation and temperature dependence of breakdown in Ga0.52In0.48P. COMPOUND SEMICONDUCTORS 1996(155) (pp 585-588) RIS download Bibtex download
  • Murray RT, Kiely CJ & Hopkinson M (1997) Crack interactions in tensile-strained epilayers. MICROSCOPY OF SEMICONDUCTING MATERIALS 1997(157) (pp 169-172) RIS download Bibtex download
  • Murray RT, Hopkinson M & Kiely CJ (1997) Profiles of cracks formed in tensile epilayers of III-V compound semi-conductors. ELECTRON MICROSCOPY AND ANALYSIS 1997(153) (pp 425-428) RIS download Bibtex download
  • Mowbray DJ, Kowalski OP, Cockburn JW, Skolnick MS, Hopkinson M & David JPR (1997) Optical spectroscopic determination of the electronic band structure of bulk AlGaInP and GaInP-AlGaInP heterojunction band offsets. IN-PLANE SEMICONDUCTOR LASERS: FROM ULTRAVIOLET TO MIDINFRARED, Vol. 3001 (pp 135-146) RIS download Bibtex download
  • Boroumand FA, Khalid AH, Hopkinson M & Swanson JG (1996) Observations of low frequency admittance between isolated GaAs structures formed by ion implantation and by epitaxy on epitaxial buffer layers prepared at high and low temperatures. IEEE Semiconducting and Semi-Insulating Materials Conference, SIMC (pp 51-54) RIS download Bibtex download
  • Zachariou A, Barnham KWJ, Griffin P, Nelson J, Button C, Hopkinson M, Pate M & Epler J (1996) A new approach to p-doping and the observation of efficiency enhancement in InP/InGaAs quantum well solar cells. Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996, 13 May 1996 - 17 May 1996. RIS download Bibtex download
  • David JPR, Ghin R, Hopkinson M, Pate MA & Robson PN (1996) Impact ionisation coefficients in (AlxGa1-x)(0.52)In0.48P. COMPOUND SEMICONDUCTORS 1995, Vol. 145 (pp 569-574) RIS download Bibtex download
  • Traynor NJ, Snelling MJ, Harley RT, Warburton RJ & Hopkinson M (1996) Investigation of g-factors, Zeeman splittings, exchange interactions and field-dependent spin relaxation in III-V quantum wells. SURFACE SCIENCE, Vol. 362(1-3) (pp 435-438) RIS download Bibtex download
  • David JPR, Ghin R, Plimmer SA, Hopkinson M & Allan J (1996) Breakdown characteristics of (AlXGa1-X)(0.52)In0.48P p-i-n diodes. ICSE '96 - 1996 IEEE INTERNATIONAL CONFERENCE ON SEMICONDUCTOR ELECTRONICS, PROCEEDINGS (pp 256-260) RIS download Bibtex download
  • Peggs DW, Skolnick MS, Whittaker DM, Hogg RA, Willcox ARK, Mowbray DJ, Grey R, Rees GJ, Hart L, Hopkinson M , Hill G et al (1996) Wannier-Stark ladder spectra in InxGa1-xAs-GaAs strained layer piezo-electric superlattices. SOLID-STATE ELECTRONICS, Vol. 40(1-8) (pp 167-170) RIS download Bibtex download
  • Chen YH, Woodhead J, David JPR, Button CC, Hopkinson M, Roberts JS, Sale TE & Robson PN (1995) Visible vertical cavity surface emitting lasers at lambda<650 nm. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, Vol. 35(1-3) (pp 12-16) RIS download Bibtex download
  • Martin RW, McGow F, Hopkinson M & David JPR (1995) Exciton effects in strain-balanced GaInAs/AlInAs and GaInAs/GaInAs coupled quantum wells.. NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS, Vol. 17(11-12) (pp 1607-1612) RIS download Bibtex download
  • Murray RT, Kiely CJ, Goodhew PJ & Hopkinson M (1995) Composition fluctuations in strained InGaAlAs layers grown on (001)InP. ELECTRON MICROSCOPY AND ANALYSIS 1995, Vol. 147 (pp 373-376) RIS download Bibtex download
  • HOPKINSON M, DAVID JPR, KHOO EA, PABLA AS, WOODHEAD J & REES GJ (1995) InxGa1-xAs/InP multiquantum well structures grown on [111]B InP substrates. SEVENTH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS, CONFERENCE PROCEEDINGS (pp 299-302) RIS download Bibtex download
  • Murray RT, Kiely CJ, Hopkinson M & Goodhew PJ (1995) Crack formation in tensile strained III-V epilayers grown on InP substrates. MICROSCOPY OF SEMICONDUCTING MATERIALS 1995, Vol. 146 (pp 207-210) RIS download Bibtex download
  • Hart L, Roberts C, Ghisoni M, Roberts JM, Harris JJ, Parry G & Hopkinson M (1995) X-ray characterisation of quantum well device structures. MICROSCOPY OF SEMICONDUCTING MATERIALS 1995, Vol. 146 (pp 393-398) RIS download Bibtex download
  • DAVID JPR, HOPKINSON M, GHIN R & PATE MA (1994) REVERSE BREAKDOWN CHARACTERISTICS IN INGA(AL)P INGAP P-I-N JUNCTIONS. SIXTH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS: CONFERENCE PROCEEDINGS (pp 403-406) RIS download Bibtex download
  • HOPKINSON M, DAVID JPR, KOWALSKI OP, MOWBRAY DJ & SKOLNICK MS (1994) GROWTH AND CHARACTERIZATION OF HIGH-QUALITY GAINP/ALGAINP QUANTUM-WELLS BY SOLID-SOURCE MOLECULAR-BEAM EPITAXY. SIXTH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS: CONFERENCE PROCEEDINGS (pp 551-554) RIS download Bibtex download
  • DELONG MC, MOWBRAY DJ, HOGG RA, SKOLNICK MS, WILLIAMS JE, MEEHAN K, KURTZ SR, OLSON JM, WU MC & HOPKINSON M (1994) THE BAND-GAP OF PERFECTLY DISORDERED GA0.52IN0.48P. 12TH NREL PHOTOVOLTAIC PROGRAM REVIEW(306) (pp 529-537) RIS download Bibtex download
  • Loh WH, Atkinson D, Morkel PR, Hopkinson M, Seeds AJ & Payne DN (1993) Passive mode locking of Er3+-doped-fiber lasers using a semiconductor saturable absorber and an integrated Bragg stack. Conference on Optical Fiber Communication/International Conference on Integrated Optics and Optical Fiber Communication, 1993. RIS download Bibtex download
  • MURRAY RT, KIELY CJ, GOODHEW PJ & HOPKINSON M (1993) ELECTRON-MICROSCOPY STUDIES OF EPITAXIAL INGAALAS LAYERS GROWN ON INP(001) BY MOLECULAR-BEAM EPITAXY. ELECTRON MICROSCOPY AND ANALYSIS 1993(138) (pp 309-312) RIS download Bibtex download
  • WANG JN, STEEDS JW & HOPKINSON M (1993) THE STUDY OF MBE GROWN (001) INXGA1-XP/GAAS STRAINED-LAYER HETEROSTRUCTURES BY TEM AND CL. MICROSCOPY OF SEMICONDUCTING MATERIALS 1993(134) (pp 295-300) RIS download Bibtex download
  • Neilson DT, Ehrlich JE, Walker AC, Kennedy GT, Grant RS, Sibbett W, Hopkinson M & Pate M (1993) Optically Induced ElectronicNonlinearities and Passive Optical Bistability in InGaAs/InP Quantum Well Waveguides at 1.5μm. Optics InfoBase Conference Papers (pp 277-280) RIS download Bibtex download
  • DeLong MC, Viohl I, Ohlsen WD, Taylor PC, Dabkowski FP, Meehan K, Williams JE & Hopkinson M (1992) Microwave-modulated photoluminescence: technique and application to III-Vs (Poster Paper). Spectroscopic Characterization Techniques for Semiconductor Technology IV RIS download Bibtex download
  • DELONG MC, HOGG RA, MOWBRAY DJ, HOPKINSON M, SKOLNICK MS, OLSON JM, KURTZ SR & KIBBLER AE (1992) PHOTOLUMINESCENCE AND PHOTOLUMINESCENCE EXCITATION SPECTROSCOPY IN ORDERED AND DISORDERED GA0.52IN0.48P. PHOTOVOLTAIC ADVANCED RESEARCH & DEVELOPMENT PROJECT, Vol. 268 (pp 332-337) RIS download Bibtex download
  • CLAXTON PA, HOPKINSON M, KOVAC J, HILL G, PATE MA & DAVID JPR (1991) QUANTUM-CONFINED STARK-EFFECT IN INGAAS/INP MULTIPLE QUANTUM-WELLS GROWN BY SOLID SOURCE MOLECULAR-BEAM EPITAXY. JOURNAL OF CRYSTAL GROWTH, Vol. 111(1-4) (pp 1080-1083) RIS download Bibtex download
  • SMITH D, HOUGHTON R, POWELL T, PARKER EHC & WHALL TE (1987) ELECTRICAL-PROPERTIES OF CAMEL DIODES SYNTHESIZED BY SI-MBE. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, Vol. 134(8B) (pp C547-C547) RIS download Bibtex download
  • SIDEBOTHAM EC, PEAKER AR, HAMILTON B & PAWLIK M (1987) RECOMBINATION-GENERATION KINETICS IN MBE SILICON. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, Vol. 134(8B) (pp C545-C545) RIS download Bibtex download
  • Thomson J, Summers H, Smowton P, Herrmann E, Blood P & Hopkinson M () Temperature dependence of the wavelength of quantum dot lasers. Conference Digest. 2000 IEEE 17th International Semiconductor Laser Conference. (Cat. No.00CH37092) RIS download Bibtex download
  • Thomson J, Smowton P, Summers H, Herrmann E, Blood P & Hopkinson M () Intrinsic performance of InGaAs-GaAs quantum dot lasers. LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No.00CH37080) RIS download Bibtex download
  • Farley RJ, Haywood SK, Hewer VA, Hogg JHC, Stavrinou PN, Hopkinson M, David JPR & Pate M () A 25 period InAs/sub 0.54/P/sub 0.46//In/sub 0.89/Ga/sub 0.11/P MQW for 1.55 μm modulation grown by solid source MBE. Conference Proceedings. 1998 International Conference on Indium Phosphide and Related Materials (Cat. No.98CH36129) RIS download Bibtex download
  • Guy P, Farley RJ, Haywood SK, Hewer VA, Hogg JHC, David JPR, Hopkinson M & Pate M () InAsP/In[Ga]P MQWs for 1.55 μm modulators grown by solid-source MBE. Conference Proceedings. 1997 International Conference on Indium Phosphide and Related Materials RIS download Bibtex download
  • Mottahedeh R, Haywood SK, Pattison DA, Kean PN, Bennion I, Hopkinson M, Prescott D & Pate M () Excitonic absorption saturation in a strain-balanced InGaAs/InAsP MQW. Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society RIS download Bibtex download
  • Roberts JM, Harris JJ, Hopkinson M & Roberts C () A comparison of ∂-doped quantum well structures for power FET applications. Proceedings 1996 IEEE Hong Kong Electron Devices Meeting RIS download Bibtex download
  • Harris JJ, Roberts JM, Jaszek R & Hopkinson M () Strain-balanced quantum wells for power FET applications. Proceedings of the 3rd IEEE International Workshop on High Performance Electron Devices for Microwave and Optoelectronic Applications, EDMO 95 RIS download Bibtex download
  • Stavrinou PN, Haywood SK, Hart L, Hopkinson M, David JPR & Hill G () Strain effects in InAsP/InP MQW modulators for 1.06 μm operation. Seventh International Conference on Indium Phosphide and Related Materials RIS download Bibtex download
  • Guy P, Woodbridge K & Hopkinson M () A comparison of material systems for quantum well 1.55 μm micro-resonator modulators. Conference on Lasers and Electro-Optics Europe RIS download Bibtex download
  • Stavrinou P, Haywood SK, Hart L, Zhang X, Hopkinson M, David JPR & Hill G () Varying strains in InAs/sub 1-x/P/sub x//InP multiple quantum well device structures. 1993 (5th) International Conference on Indium Phosphide and Related Materials RIS download Bibtex download
  • Stavrinou P, Haywood SK, Zhang X, Hopkinson M, Claxton PA, David JPR & Hill G () Photoconductivity of a strained InAs/InP superlattice in the 1.0-1.5 mu m region. LEOS 1992 Summer Topical Meeting Digest on Broadband Analog and Digital Optoelectronics, Optical Multiple Access Networks, Integrated Optoelectronics, and Smart Pixels RIS download Bibtex download
  • Hopkinson M, Claxton PA, David JPR, Hill G, Reddy M & Pate MA () High quality pseudomorphic InAs/InP quantum wells grown by molecular beam epitaxy. [Proceedings 1991] Third International Conference Indium Phosphide and Related Materials RIS download Bibtex download

Working papers

Preprints

  • Waeber AM, Hopkinson M, Skolnick MS & Chekhovich EA (2017) Dynamical suppression of fluctuations in an interacting nuclear spin bath of a self-assembled quantum dot using multiple pulse nuclear magnetic resonance, arXiv. RIS download Bibtex download
  • Waeber AM, Hopkinson M, Farrer I, Ritchie DA, Nilsson J, Stevenson RM, Bennett AJ, Shields AJ, Burkard G, Tartakovskii AI , Skolnick MS et al (2015) Few-second-long correlation times in a quantum dot nuclear spin bath probed by frequency-comb NMR spectroscopy, arXiv. RIS download Bibtex download
  • Chekhovich EA, Hopkinson M, Skolnick MS & Tartakovskii AI (2014) Quadrupolar induced suppression of nuclear spin bath fluctuations in self-assembled quantum dots, arXiv. RIS download Bibtex download
  • Puebla J, Chekhovich EA, Hopkinson M, Senellart P, Lemaitre A, Skolnick MS & Tartakovskii AI (2013) Dynamic nuclear polarization in InGaAs/GaAs and GaAs/AlGaAs quantum dots under non-resonant ultra-low power optical excitation, arXiv. RIS download Bibtex download
  • Van Hattem B, Corfdir P, Brereton P, Pearce P, Graham AM, Stanley MJ, Hugues M, Hopkinson M & Phillips RT (2013) From the artificial atom to the Kondo-Anderson model: orientation dependent magneto-photoluminescence of charged excitons in InAs quantum dots, arXiv. RIS download Bibtex download
  • Chekhovich EA, Kavokin KV, Puebla J, Krysa AB, Hopkinson M, Andreev AD, Sanchez AM, Beanland R, Skolnick MS & Tartakovskii AI (2011) High resolution nuclear magnetic resonance spectroscopy of highly-strained quantum dot nanostructures, arXiv. RIS download Bibtex download
  • Zajac JM, Langbein W, Hugues M & Hopkinson M (2011) Polariton states bound to defects in GaAs/AlAs planar microcavities, arXiv. RIS download Bibtex download
  • Chekhovich EA, Krysa AB, Hopkinson M, Senellart P, Lemaitre A, Skolnick MS & Tartakovskii AI (2011) Isotope sensitive measurement of the hole-nuclear spin interaction in quantum dots, arXiv. RIS download Bibtex download
  • Piper IM, Eastham PR, Ediger M, Wilson AM, Wu Y, Hugues M, Hopkinson M & Phillips RT (2010) Microcavity quantum-dot systems for non-equilibrium Bose-Einstein condensation, arXiv. RIS download Bibtex download
  • Wu Y, Piper IM, Ediger M, Brereton P, Schmidgall ER, Hugues M, Hopkinson M & Phillips RT (2010) Quantum state preparation in semiconductor dots by adiabatic rapid passage, arXiv. RIS download Bibtex download
  • Collins RJ, Clarke PJ, Fernandez V, Gordon KJ, Makhonin MN, Timpson JA, Tahraoui A, Hopkinson M, Fox AM, Skolnick MS & Buller GS (2010) Quantum key distribution system in standard telecommunications fiber using a short wavelength single-photon source, arXiv. RIS download Bibtex download
  • Brossard FSF, Xu XL, Williams DA, Hadjipanayi M, Hopkinson M, Wang X & Taylor RA (2010) Strongly coupled single quantum dot in a photonic crystal waveguide cavity, arXiv. RIS download Bibtex download
  • Ramsay AJ, Boyle SJ, Godden TM, Kolodka RS, Khatab AFA, Oliveira JBB, Skiba-Szymanska J, Liuc H-Y, Hopkinson M, Fox AM & Skolnick MS (2009) Towards coherent optical control of a single hole spin: Rabi rotation of a trion conditional on the spin state of the hole, arXiv. RIS download Bibtex download
  • Makhonin MN, Skiba-Szymanska J, Skolnick MS, Liu H-Y, Hopkinson M & Tartakovskii AI (2009) Voltage controlled nuclear polarization switching in a single InGaAs quantum dot, arXiv. RIS download Bibtex download
  • Boyle SJ, Ramsay AJ, Bello F, Liu HY, Hopkinson M, Fox AM & Skolnick MS (2008) Two qubit conditional quantum logic operation in a single self-assembled quantum dot, arXiv. RIS download Bibtex download
  • Zibik EA, Grange T, Carpenter BA, Ferreira R, Bastard G, Vinh NQ, Phillips PJ, Steer MJ, Hopkinson M, Cockburn JW , Skolnick MS et al (2007) Intersublevel Polaron Dephasing in Self-Assembled Quantum Dots, arXiv. RIS download Bibtex download
  • Ramsay AJ, Boyle SJ, Kolodka RS, Oliveira JBB, Skiba-Szymanska J, Liu HY, Hopkinson M, Fox AM & Skolnick MS (2007) Fast optical preparation, control and read-out of single quantum dot spin, arXiv. RIS download Bibtex download
  • Makhonin MN, Tartakovskii AI, Drouzas I, Van'kov AB, Wright T, Skiba-Szymanska J, Russell A, Fal'ko VI, Skolnick MS, Liu H-Y & Hopkinson M (2007) Long nuclear spin decay times controlled by optical pumping in individual quantum dots, arXiv. RIS download Bibtex download
  • Sanvitto D, Laussy FP, Bello F, Whittaker DM, Fox AM, Skolnick MS, Tahraoui A, Fry PW & Hopkinson M (2006) Single-photon nonlinearity of a semiconductor quantum dot in a cavity, arXiv. RIS download Bibtex download
  • Tartakovskii AI, Wright T, Russell A, Fal'ko VI, Van'kov AB, Skiba-Szymanska J, Drouzas I, Kolodka RS, Skolnick MS, Fry PW , Tahraoui A et al (2006) Nuclear Spin Switch in Semiconductor Quantum Dots, arXiv. RIS download Bibtex download
  • Oulton R, Tartakovskii AI, Ebbens A, Finley JJ, Mowbray DJ, Skolnick MS & Hopkinson M (2004) Anomalous Stark Shifts in Single Vertically Coupled Pairs of InGaAs Quantum Dots, arXiv. RIS download Bibtex download
Teaching activities
  • EEE6215 (Nanoscale Electronic Devices)
  • EEE6216 (Energy efficient Semiconductor Devices)
  • EEE260/262 Solar Cell Design Project
Professional activities and memberships
  • Professor of Semiconductor Materials
  • Chair of the Undergraduate Examination Board
  • Departmental REF2021 champion
Research students
Student Degree Status Primary/Secondary
Greenwood P D L PhD Graduated Primary
Jin C PhD Graduated Primary
Navaretti P PhD Graduated Primary

Soong W M

PhD Graduated Secondary
Taghi Kahni A PhD Graduated Secondary