Professor Russell Gwilliam
Professor
Email: r.gwilliam@surrey.ac.uk
Phone: Work: 01483 68 9845
Room no: 16 NC 00
Further information
Publications
Highlights
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(2009) 'Enhancement of phosphorus activation in vacancy engineered thin silicon-on-insulator substrates'. AMER INST PHYSICS JOURNAL OF APPLIED PHYSICS, 106 (10) Article number ARTN 103514 doi: 10.1063/1.3262527Full text is available at: http://epubs.surrey.ac.uk/745813/
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(2008) 'Evolution of vacancy-related defects upon annealing of ion-implanted germanium'. AMER PHYSICAL SOC PHYSICAL REVIEW B, 78 (8) Article number ARTN 085202 Full text is available at: http://epubs.surrey.ac.uk/240/
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(2007) 'Extraordinary optical gain from silicon implanted with erbium'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 91 (14) Article number ARTN 141122 doi: 10.1063/1.2797975Full text is available at: http://epubs.surrey.ac.uk/258/
Journal articles
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(2013) 'Donor ionization in size controlled silicon nanocrystals: The transition from defect passivation to free electron generation'. Journal of Applied Physics, 113 (2)doi: 10.1063/1.4772947
- . (2013) 'Size limit on the phosphorous doped silicon nanocrystals for dopant activation'. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms,
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(2012) 'Investigation of the thermal charge "trapping-detrapping" in silicon nanocrystals: Correlation of the optical properties with complex impedance spectra'. Applied Physics Letters, 101 (24)doi: 10.1063/1.4772475
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(2012) 'Nitrogen ion implanted InP based photo-switch'. Optics Express, 20 (24), pp. 26696-26703.doi: 10.1364/OE.20.026696
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(2012) 'Structural analysis of silicon co-implanted with carbon and high energy proton for the formation of the lasing G-centre'. Journal of Applied Physics, 112 (10)doi: 10.1063/1.4766390
- . (2012) 'Co-Implantation of Carbon and Protons: An Integrated Silicon Device Technology Compatible Method to Generate the Lasing G-Center'. WILEY-V C H VERLAG GMBH ADVANCED FUNCTIONAL MATERIALS, 22 (13), pp. 2709-2712.
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(2012) 'Effect of proton bombardment on InAs dots and wetting layer in laser structures'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 100 (26) Article number ARTN 261105 doi: 10.1063/1.4730964
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(2012) 'Planar InAs photodiodes fabricated using He ion implantation'. Optics Express, 20 (8), pp. 8575-8583.doi: 10.1364/OE.20.008575
- . (2012) 'Characterization of a-FeSi /c-Si heterojunctions for photovoltaic applications'. Semiconductor Science and Technology, 27 (3)
- . (2012) 'Characterization of a-FeSi /c-Si heterojunctions for photovoltaic applications'. Semiconductor Science and Technology, 27 (3)
- . (2012) 'Dilute nitride and GaAs n-i-p-i solar cells'. Nanoscale Research Letters, 7
- . (2012) 'Evaluating InAs QD lasers for space borne applications'. Conference Digest - IEEE International Semiconductor Laser Conference, , pp. 94-95.
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(2012) 'Solid phase epitaxial re-growth of Sn ion implanted germanium thin films'. AIP Conference Proceedings, 1496, pp. 103-106.doi: 10.1063/1.4766500
- . (2012) 'Vacancy-type defects created by single-shot and chain ion implantation of silicon'. New Journal of Physics, 14
- . (2012) 'Ion beam assisted crystallization of amorphous silicon layers using high current density Gallium beams'. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 272, pp. 409-413.
- . (2012) 'Role of self-interstitials on B diffusion in Ge'. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 282, pp. 8-11.
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(2011) 'Role of heavy ion co-implantation and thermal spikes on the development of dislocation loops in nanoengineered silicon light emitting diodes'. AMER INST PHYSICS JOURNAL OF APPLIED PHYSICS, 110 (3) Article number ARTN 033508 doi: 10.1063/1.3614036Full text is available at: http://epubs.surrey.ac.uk/7826/
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(2011) 'Self-interstitials injection in crystalline Ge induced by GeO2 nanoclusters'. AMER PHYSICAL SOC PHYSICAL REVIEW B, 84 (2) Article number ARTN 024104 Full text is available at: http://epubs.surrey.ac.uk/7827/
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(2011) 'The evolution of vacancy-type defects in silicon-on-insulator structures studied by positron annihilation spectroscopy'. AMER INST PHYSICS JOURNAL OF APPLIED PHYSICS, 110 (1) Article number ARTN 016104 doi: 10.1063/1.3605487Full text is available at: http://epubs.surrey.ac.uk/7828/
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(2011) 'Laser erasable implanted gratings for integrated silicon photonics'. Optical Society of America Optics Express, 19 (11), pp. 10728-10734.doi: 10.1364/OE.19.010728Full text is available at: http://epubs.surrey.ac.uk/7086/
Abstract
In this work we experimentally demonstrate laser erasable germanium implanted Bragg gratings in SOI. Bragg gratings are formed in a silicon waveguide by ion implantation induced amorphization, and are subsequently erased by a contained laser thermal treatment process. An extinction ratio up to 24dB has been demonstrated in transmission for the fabricated implanted Bragg gratings with lengths up to 1000 mu m. Results are also presented, demonstrating that the gratings can be selectively removed by UV pulsed laser annealing, enabling a new concept of laser erasable devices for integrated photonics.
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(2011) 'Probing the phonon confinement in ultrasmall silicon nanocrystals reveals a size-dependent surface energy'. AMER INST PHYSICS JOURNAL OF APPLIED PHYSICS, 109 (8) Article number ARTN 083534 doi: 10.1063/1.3575181Full text is available at: http://epubs.surrey.ac.uk/7825/
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(2011) 'Eye-safe 2 μm luminescence from thulium-doped silicon.'. Optical Society of America Opt Lett, United States: 36 (2), pp. 169-171.doi: 10.1364/OL.36.000169Full text is available at: http://epubs.surrey.ac.uk/7829/
Abstract
We report on photoluminescence in the 1.7-2.1 μm range of silicon doped with thulium. This is achieved by the implantation of Tm into silicon that has been codoped with boron to reduce the thermal quenching. At least six strong lines can be distinguished at 80 K; at 300 K, the spectrum is dominated by the main emission at 2 μm. These emissions are attributed to the trivalent Tm(3+) internal transitions between the first excited state and the ground state.
- . (2011) 'Ion beam assisted crystallization of amorphous silicon layers using high current density Gallium beams'. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms,
- . (2011) 'Probing the formation of silicon nano-crystals (Si-ncs) using variable energy positron annihilation spectroscopy'. Journal of Physics: Conference Series, 262 (1)
- . (2011) 'Role of self-interstitials on B diffusion in Ge'. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms,
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(2010) 'Spatially correlated erbium and Si nanocrystals in coimplanted SiO2 after a single high temperature anneal'. AMER INST PHYSICS JOURNAL OF APPLIED PHYSICS, 107 (4) Article number ARTN 044316 doi: 10.1063/1.3294645
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(2010) 'Modifying functionality of variable optical attenuator to signal monitoring through defect engineering'. INST ENGINEERING TECHNOLOGY-IET ELECTRONICS LETTERS, 46 (3), pp. 234-235.doi: 10.1049/el.2010.2785
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(2010) 'Effects of annealing silicon ion irradiated rib waveguides with respect to free carrier lifetime'. SPIE-INT SOC OPTICAL ENGINEERING SILICON PHOTONICS V, San Francisco, CA: 7606 Article number ARTN 76060H doi: 10.1117/12.838582
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(2010) 'Novel processing for Si-nanocrystal based photonic materials'. ECS Transactions, 28 (3), pp. 3-13.doi: 10.1149/1.3367207
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(2010) 'Germanium implanted Bragg gratings in Silicon on Insulator waveguides'. SPIE-INT SOC OPTICAL ENGINEERING SILICON PHOTONICS V, San Francisco, CA: 7606 Article number ARTN 76060G doi: 10.1117/12.839502
- . (2010) 'Photoluminescence study of thulium-doped silicon substrates for light emitting diodes'. ELSEVIER SCIENCE BV OPTICAL MATERIALS, Herceg Novi, MONTENEGRO: 32 (12), pp. 1597-1600.
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(2010) 'Process characterization of low temperature ion implantation using ribbon beam and spot beam on the AIBT iPulsar high current'. AIP Conference Proceedings, 1321, pp. 49-52.doi: 10.1063/1.3548462
- . (2010) 'Structural and compositional study of Erbium-doped silicon nanocrystals by HAADF, EELS and HRTEM techniques in an aberration corrected STEM'. Journal of Physics: Conference Series, 209
- . (2010) 'Nano-engineered silicon light emitting diodes and optically active waveguides'. ELSEVIER SCIENCE BV OPTICAL MATERIALS, Herceg Novi, MONTENEGRO: 32 (12), pp. 1601-1605.
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(2009) 'Enhancement of phosphorus activation in vacancy engineered thin silicon-on-insulator substrates'. AMER INST PHYSICS JOURNAL OF APPLIED PHYSICS, 106 (10) Article number ARTN 103514 doi: 10.1063/1.3262527Full text is available at: http://epubs.surrey.ac.uk/745813/
- . (2009) 'Stressed solid-phase epitaxial growth of (011) Si'. MATERIALS RESEARCH SOC JOURNAL OF MATERIALS RESEARCH, 24 (2), pp. 305-309.
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(2009) 'Free carrier lifetime modification in silicon'. SPIE-INT SOC OPTICAL ENGINEERING SILICON PHOTONICS IV, San Jose, CA: 7220 Article number ARTN 722006 doi: 10.1117/12.810907
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(2009) 'Structure and luminescence of rare earth-doped silicon oxides studied through XANES and XEOL'. ECS Transactions, 25 (9), pp. 213-222.doi: 10.1149/1.3211180
- . (2009) 'Simulation of electrical properties in ion implanted GaAs'. Physics Procedia, 2 (3), pp. 797-801.
- . (2008) 'Differential Hall characterisation of ultrashallow doping in advanced Si-based materials'. ELSEVIER SCIENCE BV MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, Strasbourg, FRANCE: 154, pp. 229-233.
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(2008) 'Free carrier lifetime modification for silicon waveguide based devices'. OPTICAL SOC AMER OPT EXPRESS, 16 (24), pp. 19779-19784.doi: 10.1364/OE.16.019779Full text is available at: http://epubs.surrey.ac.uk/7092/
Abstract
We investigate the effect of silicon ion irradiation on free carrier lifetime in silicon waveguides, and thus its ability to reduce the density of two-photon-absorption (TPA) generated free carriers. Our experimental results show that free carrier lifetime can be reduced significantly by silicon ion implantation. Associated excess optical absorption from the implanted ions can be reduced to an acceptable level if irradiation energy and dose are correctly chosen. Simulations of Raman scattering suggest that net gain can be achieved in certain cases without the need for an integrated diode in reverse bias to remove the photo-generated free carriers. (c) 2008 Optical Society of America
- . (2008) 'Enhanced n-type dopant solubility in tensile-strained Si'. ELSEVIER SCIENCE SA THIN SOLID FILMS, 517 (1), pp. 331-333.
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(2008) 'Evolution of vacancy-related defects upon annealing of ion-implanted germanium'. AMER PHYSICAL SOC PHYSICAL REVIEW B, 78 (8) Article number ARTN 085202 Full text is available at: http://epubs.surrey.ac.uk/240/
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(2008) 'Dopant-stress synergy in Si solid-phase epitaxy'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 92 (23) Article number ARTN 232110 doi: 10.1063/1.2945291
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(2008) 'Constraints on micro-Raman strain metrology for highly doped strained Si materials'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 92 (23) Article number ARTN 233506 doi: 10.1063/1.2942392Full text is available at: http://epubs.surrey.ac.uk/260/
- . (2008) 'Stressed solid-phase epitaxial growth of ion-implanted amorphous silicon'. ELSEVIER SCIENCE SA MATERIALS SCIENCE & ENGINEERING R-REPORTS, 61 (1-6), pp. 40-58.
- . (2008) 'Kinetics and morphological instabilities of stressed solid-solid phase transformations'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 100 (16) Article number ARTN 165501
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(2008) 'Silicon light emitting diodes emitting over the 1.2-1.4 mu m wavelength region in the extended optical communication band'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 92 (16) Article number ARTN 161108 doi: 10.1063/1.2916824Full text is available at: http://epubs.surrey.ac.uk/428/
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(2008) 'Optical filters utilizing ion implanted Bragg gratings in SOI waveguides'. Hindawi Publishing Corporation Advances in Optical Technologies, 2008 Article number 276165 doi: 10.1155/2008/276165Full text is available at: http://epubs.surrey.ac.uk/7094/
Abstract
The refractive index modulation associated with the implantation of oxygen or silicon into waveguides formed in silicon-on- insulator (SOI) has been investigated to determine the feasibility of producing planar, implantation induced Bragg grating optical filters. A two-dimensional coupled mode theory-based simulation suggests that relatively short grating lengths, on the order of a thousand microns, can exhibit sufficient wavelength suppression, of > 10 dB, using the implantation technique. Fabricated planar implanted slab-guided SOI waveguides demonstrated an extinction of −10 dB for TE modes and −6 dB for TM modes for the case of oxygen implantation. Extinctions of −5 dB and −2 dB have been demonstrated with silicon implantation.
- . (2008) 'Vacancy engineering - An ultra-low thermal budget method for high-concentration 'diffusionless' implantation doping'. Materials Science Forum, 573-574, pp. 295-304.
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(2008) 'Antimony for n-type metal oxide semiconductor ultrashallow junctions in strained Si: A superior dopant to arsenic?'. A V S AMER INST PHYSICS JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, Napa, CA: 26 (1), pp. 391-395.doi: 10.1116/1.2816929
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(2008) 'Interaction of the end of range defect band with the upper buried oxide interface for B and BF2 implants in Si and silicon on insulator with and without preamorphizing implant'. A V S AMER INST PHYSICS JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, Napa, CA: 26 (1), pp. 347-350.doi: 10.1116/1.2816936
- . (2008) 'Differential Hall characterisation of ultrashallow doping in advanced Si-based materials'. ELSEVIER SCIENCE BV MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, Strasbourg, FRANCE: 154, pp. 229-233.
- . (2007) 'A monolithic MQW InP-InGaAsP-Based optical comb generator'. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC IEEE JOURNAL OF QUANTUM ELECTRONICS, 43 (11-12), pp. 998-1005.
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(2007) 'Solid phase epitaxy in uniaxially stressed (001) Si'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 91 (17) Article number ARTN 172103 doi: 10.1063/1.2801518
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(2007) 'Extraordinary optical gain from silicon implanted with erbium'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 91 (14) Article number ARTN 141122 doi: 10.1063/1.2797975Full text is available at: http://epubs.surrey.ac.uk/258/
- . (2007) 'Considerations for interpretation of luminescence from silicon-on-insulator light emitting structures'. IOP PUBLISHING LTD SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 22 (10), pp. 1104-1110.
- . (2007) 'Fast tuneable InGaAsP DBR laser using quantum-confined stark-effect-induced refractive index change'. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 13 (5), pp. 1112-1121.
- . (2007) 'Vacancy engineering for ultra-shallow junction formation'. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 261 (1-2 SPEC. ISS.), pp. 600-603.
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(2007) 'Novel fabrication techniques for silicon photonics'. SPIE-INT SOC OPTICAL ENGINEERING SILICON PHOTONICS II, San Jose, CA: 6477 Article number ARTN 64770E doi: 10.1117/12.705180
- . (2007) 'Photonic synthesis of THz signals'. Proceedings of the 36th European Microwave Conference, EuMC 2006, , pp. 1107-1110.
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(2006) 'Ultraviolet photoluminescence from Gd-implanted AlN epilayers'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 89 (15) Article number ARTN 152107 doi: 10.1063/1.2357552
- . (2006) 'Characterising ion-cut in GaAs by Rutherford backscattering spectroscopy'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Seville, SPAIN: 249, pp. 429-431.
- . (2006) 'Quality assurance in an implantation laboratory by high accuracy RBS'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Seville, SPAIN: 249, pp. 482-485.
- . (2006) 'Optimising dislocation-engineered silicon light-emitting diodes'. SPRINGER APPLIED PHYSICS B-LASERS AND OPTICS, 83 (2), pp. 289-294.
- . (2006) 'Signal stability in periodically amplified fiber transmission systems using multiple quantum well saturable absorbers for regeneration'. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC JOURNAL OF LIGHTWAVE TECHNOLOGY, 24 (2), pp. 747-754.
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(2006) 'Effect of Gd implantation on the structural and magnetic properties of GaN and AlN'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 88 (4) Article number ARTN 042102 doi: 10.1063/1.2167790
- . (2006) 'The effect of flash annealing on the electrical properties of indium/carbon Co-implants in silicon'. AIP Conference Proceedings, 866, pp. 113-116.
- . (2006) 'Strain-enhanced activation of Sb ultrashallow junctions'. AMER INST PHYSICS Ion Implantation Technology, Marseille, FRANCE: 866, pp. 54-57.
- . (2006) 'Junction stability of B doped layers in SOI formed with optimized vacancy engineering implants'. AIP Conference Proceedings, 866, pp. 84-87.
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(2006) 'Vacancy-engineering implants for high boron activation in silicon on insulator'. Applied Physics Letters, 88 (8)doi: 10.1063/1.2178487Full text is available at: http://epubs.surrey.ac.uk/227/
Abstract
The formation of boron interstitial clusters is a key limiting factor for the fabrication of highly conductive ultrashallow doped regions in future silicon-based device technology. Optimized vacancy engineering strongly reduces boron clustering, enabling low-temperature electrical activation to levels rivalling what can be achieved with conventional preamorphization and solid-phase epitaxial regrowth. An optimized 160 keV silicon implant in a 55145 nm silicon-on-insulator structure enables stable activation of a 500 eV boron implant to a concentration ∼5× 1020 cm-3. © 2006 American Institute of Physics.
- . (2006) 'Monolithically integrated QCSE-tuned InGaAsP MQW ridge waveguide DBR laser'. Conference Proceedings - International Conference on Indium Phosphide and Related Materials, 2006, pp. 72-74.
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(2006) 'Understanding ion implantation defects in germanium'. ECS Transactions, 3 (2), pp. 67-76.doi: 10.1149/1.2356265
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(2006) 'Highly conductive Sb-doped layers in strained Si'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 89 (18) Article number ARTN 182122 doi: 10.1063/1.2382741Full text is available at: http://epubs.surrey.ac.uk/126/
- . (2006) 'A monolithic MQW InP/InGaAsP-based comb generator'. 2006 International Topical Meeting on Microwave Photonics, MWP,
- . (2006) 'Chicane deceleration - An innovative energy contamination control technique in low energy ion implantation'. AIP Conference Proceedings, 866, pp. 335-339.
- . (2006) '10 Gb/s noise suppression using an ion implanted waveguide saturable absorber'. Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006,
- . (2006) 'Ultra-shallow junction formation in SOI using vacancy engineering'. AMER INST PHYSICS Physics of Ionized Gases, Natl Park Kopaonik, SERBIA: 876, pp. 181-190.
- . (2006) 'Shallow junctions in silicon via low thermal budget processing'. Extended Abstracts of the Sixth International Workshop on Junction Technology, IWJT '06, , pp. 10-15.
- . (2006) 'Enhanced antimony activation for ultra-shallow junctions in strained silicon'. Materials Research Society Symposium Proceedings, 912, pp. 59-64.
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(2005) 'Transition from amorphous to crystalline beta phase in co-sputtered FeSi2 films as a function of temperature'. AMER INST PHYSICS JOURNAL OF APPLIED PHYSICS, 98 (12) Article number ARTN 123506 doi: 10.1063/1.2148629Full text is available at: http://epubs.surrey.ac.uk/464/
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(2005) 'Dislocation engineered silicon for light emission'. IEEE 2005 IEEE LEOS Annual Meeting Conference Proceedings (LEOS), Sydney, AUSTRALIA: , pp. 608-609.Full text is available at: http://epubs.surrey.ac.uk/1752/
Conference papers
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(2012) 'Temperature-Dependant Study Of Phosphorus Ion Implantation In Germanium'. AMER INST PHYSICS ION IMPLANTATION TECHNOLOGY 2012, Valladolid, SPAIN: 19th International Conference on Ion Implantation Technology (IIT) 1496, pp. 193-196.doi: 10.1063/1.4766522
- . (2012) 'Planar InAs photodiodes fabricated using He ion implantation'. 2012 IEEE Photonics Conference, IPC 2012, , pp. 165-166.
- . (2012) 'On fabrication of high concentration Mn doped Si by ion implantation: problem and challenge'. ELSEVIER SCIENCE BV 18TH INTERNATIONAL VACUUM CONGRESS (IVC-18), Beijing, PEOPLES R CHINA: 18th International Vacuum Congress (IVC)/International Conference on Nanoscience and Technology (ICNT)/14th International Conference on Surfaces Science (ICSS)/Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA) 32, pp. 408-411.
- . (2011) 'Very low energy implanted Bragg gratings in SOI for wafer scale testing applications'. IEEE Proceedings of 8th IEEE International Conference on Group IV Photonics, London, UK: 8th IEEE GFP, pp. 51-53.
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(2011) 'Low energy silicon on insulator ion implanted gratings for optical wafer scale testing'. SPIE Proceedings of SPIE - The International Society for Optical Engineering, San Francisco, USA: Silicon Photonics VI 7943doi: 10.1117/12.873288Full text is available at: http://epubs.surrey.ac.uk/7822/
Abstract
Silicon photonics shows tremendous potential for the development of the next generation of ultra fast telecommunication, tera-scale computing, and integrated sensing applications. One of the challenges that must be addressed when integrating a "photonic layer" onto a silicon microelectronic circuit is the development of a wafer scale optical testing technique, similar to that employed today in integrated electronics industrial manufacturing. This represents a critical step for the advancement of silicon photonics to large scale production technology with reduced costs. In this work we propose the fabrication and testing of ion implanted gratings in sub micrometer SOI waveguides, which could be applied to the implementation of optical wafer scale testing strategies. An extinction ratio of over 25dB has been demonstrated for ion implanted Bragg gratings fabricated by low energy implants in submicron SOI rib waveguides with lengths up to 1mm. Furthermore, the possibility of employing the proposed implanted gratings for an optical wafer scale testing scheme is discussed in this work.
- . (2010) 'Luminescence of Tm3+in dislocation engineered silicon substrates'. Proceedings of 7th IEEE International Conference on Group IV Photonics, Beijing, China: 7th IEEE GFP, pp. 159-161.
- . (2010) '1.1 to 1.6 μm silicon light emitting diodes and optical gain'. Proceedings of IEEE 7th International Conference on Group IV Photonics GFP, Beijing, China: 7th IEEE GFP, pp. 302-304.
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(2010) 'Optimization and characterisation of amorphous iron disilicide formed by ion beam mixing of Fe/Si multilayer structures for photovoltaic applications'. AIP Conference Proceedings, Kyoto, Japan: Ion Implantation Technology 2101: 18th International Conference on Ion Implantation Technology IIT 2010 1321, pp. 278-281.doi: 10.1063/1.3548379
- . (2010) 'On artefacts in the secondary ion mass spectrometry profiling of high fluence H+ implants in GaAs'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Univ Cambridge, Cambridge, ENGLAND: 19th International Conference on Ion Beam Analysis 268 (11-12), pp. 2051-2055.
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(2010) 'Optical spectroscopy of Er doped Si-nanocrystals on sapphire substrates fabricated by ion implantation into SiO2'. Proceedings of SPIE - The International Society for Optical Engineering, San Francisco, USA: Silicon Photonics V 7606doi: 10.1117/12.852922
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(2010) 'Formation of Si-nanocrystals in SiO2 via ion implantation and rapid thermal processing'. Proceedings of SPIE - The International Society for Optical Engineering, San Francisco, USA: Silicon Photonics V 7606doi: 10.1117/12.852924
- . (2009) 'Observation of non-radiative de-excitation processes in silicon nanocrystals'. WILEY-BLACKWELL PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, Edmonton, CANADA: 3rd International Conference on Optical, Optoelectronic and Photonic Materials and Applications 206 (5), pp. 969-972.
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(2009) 'Silicon photonics at the University of Surrey'. Proceedings of SPIE - The International Society for Optical Engineering, Dresden, Germany: Photonic Materials, Devices, and Applications III 7366, pp. 736602.1-736602.12.doi: 10.1117/12.823291
- . (2009) 'Silicon Carbide Static Induction Transistor with Implanted Buried Gate'. TRANS TECH PUBLICATIONS LTD SILICON CARBIDE AND RELATED MATERIALS 2008, Barcelona, SPAIN: 7th European Conference on Silicon Carbide and Related Materials 615-617, pp. 735-738.
- . (2008) 'Vacancy engineering for highly activated 'diffusionless' boron doping in bulk silicon'. Proceedings of the 38th European Solid-State Device Research Conference, Edinburgh, UK: ESSDERC 2008, pp. 290-293.
- . (2008) 'The effect of doping type and concentration on optical absorption via implantation induced defects in silicon-on-insulator waveguides'. Proceedings of Conference on Optoelectronic and Microelectronic Materials and Devices, Proceedings, COMMAD, Sydney, Australia: COMMAD 2008, pp. 152-155.
- . (2008) 'Microwave photonics: Opportunities for photonic integration'. Proceedings of the 14th European Conference on Integrated Optics and Technical Exhibition, Eindhoven, The Netherlands: ECIO'08, pp. 123-132.
- . (2008) 'Formation of dislocation loops in silicon by ion irradiation for silicon light emitting diodes'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Florence, ITALY: 9th European Conference on Accelerators in Applied Research and Technology 266 (10), pp. 2470-2474.
- . (2008) 'Free carrier lifetime modification for silicon waveguide based devices'. IEEE Proceedings of 5th IEEE International Conference on Group IV Photonics, Cardiff, UK: 5th IEEE GFP, pp. 122-124.
- . (2008) 'A Comparative Study of Interaction of End of Range (EOR) Defect Band with Upper Buried Oxide (BOX) Interface for B and BF(2) Implants in SOI and Bulk Silicon with Pre-Amorphizing Implant'. AMER INST PHYSICS ION IMPLANTATION TECHNOLOGY 2008, Monterey, CA: 17th International Conference on Ion Implantation Technology 1066, pp. 51-54.
- . (2008) 'Junction Leakage Analysis of Vacancy Engineered Ultra-Shallow p-type Layers'. AMER INST PHYSICS ION IMPLANTATION TECHNOLOGY 2008, Monterey, CA: 17th International Conference on Ion Implantation Technology 1066, pp. 22-25.
- . (2008) 'The Formation of Ultra-Shallow Phosphorous Doped Layers Using Vacancy Engineering'. AMER INST PHYSICS ION IMPLANTATION TECHNOLOGY 2008, Monterey, CA: 17th International Conference on Ion Implantation Technology 1066, pp. 38-41.
- . (2007) 'Depth profile analysis for MgB2 thin films, formed by B implantation in Mg ribbons using energetic ion backscatterings'. ELSEVIER SCIENCE BV PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, Dresden, GERMANY: 8th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors 460, pp. 600-601.
- . (2007) 'Dislocation engineered silicon light emitting devices'. ELSEVIER SCIENCE SA THIN SOLID FILMS, Kyoto, JAPAN: Asia-Pacific Conference on Semiconducting Silicides 515 (22), pp. 8113-8117.
- . (2007) 'Maskless proton beam writing in gallium arsenide'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Singapore, SINGAPORE: 10th International Conference on Nuclear Microprobe Technology and Applications held in Conjunction with the 2nd International Workshop on Proton Beam Writing 260 (1), pp. 437-441.
- . (2007) 'Excitation and pressure effects on photoluminescence from dislocation engineered silicon material'. WILEY-V C H VERLAG GMBH PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, Barcelona, SPAIN: 12th International Conference on High Pressure Semiconductor Physics (HPSP-12) 244 (1), pp. 402-406.
- . (2006) 'Boron engineered dislocation loops for efficient room temperature silicon light emitting diodes'. ELSEVIER SCIENCE SA THIN SOLID FILMS, Singapore, SINGAPORE: 3rd International Conference on Materials for Advanced Technologies/9th International Conference on Advanced Materials 504 (1-2), pp. 36-40.
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