Dr. Huw D. Summers Profile

Dr. Huw D. Summers

Senior Lecturer at Cardiff Univ

SPIE Involvement:

Author

Publications (29)

Proceedings Article | 12 February 2010 Paper

Manipulation of optical modes in quantum dot laser diodes by selective oxidation of high aluminum content AlGaAs layers

G. Michell, P. Smowton, H. Summers

Proceedings Volume 7616, 76161T (2010) https://doi.org/10.1117/12.846843

KEYWORDS: Near field, Near field optics, Saturable absorption, Aluminum, Lithium, Data modeling, Quantum optics, Quantum dot lasers, Diodes, Oxidation

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Proceedings Article | 13 February 2009 Paper

Fluorescence lifetime based contrast imaging using variable period excitation pulse trains

M. Holton, O. Silvestre, R. Errington, P. Smith, P. Rees, H. Summers

Proceedings Volume 7183, 718321 (2009) https://doi.org/10.1117/12.808970

KEYWORDS: Luminescence, Pulsed laser operation, Streak cameras, CCD cameras, Optical filters, Microscopes, Fluorescence lifetime imaging, Quantum dots, Charge-coupled devices, Imaging systems

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Proceedings Article | 13 February 2009 Paper

Hollow fiber: a biophotonic implant for live cells

Oscar Silvestre, Mark Holton, Huw Summers, Paul Smith, Rachel Errington

Proceedings Volume 7182, 71820V (2009) https://doi.org/10.1117/12.809391

KEYWORDS: Signal detection, Imaging systems, Luminescence, Light emitting diodes, Optical fibers, In vitro testing, Systems modeling, In vivo imaging, Biomedical optics, Scanning electron microscopy

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Proceedings Article | 6 February 2009 Paper

Self pulsing quantum dot lasers for optical coherence tomography

Haoling Liu, Peter Smowton, Gareth Edwards, Wolfgang Drexler, Huw Summers

Proceedings Volume 7230, 72300A (2009) https://doi.org/10.1117/12.813504

KEYWORDS: Optical coherence tomography, Light sources, Quantum dot lasers, Pulsed laser operation, Gallium arsenide, Quantum dots, Semiconductor lasers, Waveguide lasers, Modes of laser operation

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Proceedings Article | 29 February 2008 Paper

Design of a multi-stage microfluidics system for high-speed flow cytometry and closed system cell sorting for cytomics

Meggie Grafton, Lisa Reece, Pedro Irazoqui, Byunghoo Jung, Huw Summers, Rashid Bashir, James Leary

Proceedings Volume 6859, 68590V (2008) https://doi.org/10.1117/12.764037

KEYWORDS: Microfluidics, Avalanche photodetectors, Digital signal processing, Computer aided design, Signal processing, Semiconducting wafers, Electronics, Light emitting diodes, Flow cytometry, Luminescence

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Proceedings Article | 22 February 2008 Paper

Cell-population tracking using quantum dots in flow cytometry

Huw Summers, Rachel Errington, Paul Smith, Sally Chappell, Paul Rees, Martyn Brown, James Leary

Proceedings Volume 6865, 68650L (2008) https://doi.org/10.1117/12.763602

KEYWORDS: Quantum dots, Genetic algorithms, Flow cytometry, Computer simulations, Luminescence, Stochastic processes, Statistical analysis, Data analysis, Evolutionary algorithms, Data modeling

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Proceedings Article | 19 February 2008 Paper

Cytometric biochips with optically active surfaces for spatial engineering of fluorescence excitation

Huw Summers, Rachel Errington, Paul Smith, Daniel Matthews, James Leary

Proceedings Volume 6886, 688603 (2008) https://doi.org/10.1117/12.763645

KEYWORDS: Waveguides, Luminescence, Surface plasmons, Metals, Semiconductor lasers, Gold, Plasmons, Microscopy, Interfaces, Refractive index

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Proceedings Article | 20 March 2007 Paper

Laser micromachining of optical biochips

Andrew Goater, Julian Burt, David Morris, Anoop Menachery, Nadeem Rizvi, Daniel Matthews, Huw Summers

Proceedings Volume 6459, 645909 (2007) https://doi.org/10.1117/12.700899

KEYWORDS: Micromachining, Microfluidics, Waveguides, Excimer lasers, Semiconducting wafers, Photomasks, Electrodes, Optics manufacturing, Particles, Glasses

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Proceedings Article | 19 February 2007 Paper

Development of an optical biochip for the analysis of cell environment sensitivity

David Morris, Andrew Goater, Anoop Menachery, Julian Burt, Nadeem Rizvi, Daniel Matthews, Huw Summers, Iestyn Pope, Boris Vojnovic, Kerenza Njoh, Sally Chappell, Rachel Errington, Paul Smith

Proceedings Volume 6441, 64410V (2007) https://doi.org/10.1117/12.700052

KEYWORDS: Electrodes, Microfluidics, Dielectrophoresis, Environmental monitoring, Micromachining, Optics manufacturing, Environmental sensing, Biological research, Integrated optics, Particles

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Proceedings Article | 19 February 2007 Paper

Live cell tracking on an optical biochip platform

Kerenza Njoh, Paul Smith, Sally Chappell, Huw Summers, Daniel Matthews, David Morris, Andrew Goater, Julian Burt, Iestyn Pope, Boris Vojnovic, Simon Ameer-Beg, Rachel Errington

Proceedings Volume 6441, 64410X (2007) https://doi.org/10.1117/12.698935

KEYWORDS: Luminescence, Optical tracking, Quantum dots, Microscopy, Nanocrystals, Cancer, Microfluidics, Light emitting diodes, Tissues, Systems modeling

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Proceedings Article | 19 February 2007 Paper

Semiconductor light-emitting devices with in-built bioreaction chambers

H. Summers, D. Matthews, R. Errington, K. Njoh, P. Smith, A. Goater, J. P. Burt, N. Rizvi, A. Menachery, D. Morris

Proceedings Volume 6441, 64410Y (2007) https://doi.org/10.1117/12.700411

KEYWORDS: Semiconductors, Luminescence, Semiconducting wafers, Semiconductor lasers, Light emitting diodes, Epoxies, Integrated optics, Crystals, Wafer-level optics, Biological research

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Proceedings Article | 14 February 2007 Paper

A fluorescence biochip with a plasmon active surface

Daniel Matthews, Huw Summers, Kerenza Njoh, Sally Chappell, Rachel Errington, Paul Smith, Iestyn Pope, Paul Barber, Boris Vojnovic, Simon Ameer-Beg

Proceedings Volume 6450, 645006 (2007) https://doi.org/10.1117/12.698948

KEYWORDS: Luminescence, Metals, Surface plasmons, Molecules, Gold, Quantum dots, Glasses, Active optics, Microscopes, Line scan image sensors

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Proceedings Article | 8 February 2007 Paper

Recombination in quantum dot ensembles

Peter Blood, Helen Pask, Ian Sandall, Huw Summers

Proceedings Volume 6485, 64850J (2007) https://doi.org/10.1117/12.714264

KEYWORDS: Electrons, Quantum wells, Quantum dots, Excitons, Light emitting diodes, Absorption, Statistical modeling, Data modeling, Physics, Semiconductor lasers

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Proceedings Article | 5 February 2007 Paper

Investigation of quantum dot FRET in the far-red spectral region

E. Z. Chong, D. Matthews, H. Summers, K. Njoh, R. Errington, P. Smith

Proceedings Volume 6448, 64480H (2007) https://doi.org/10.1117/12.700118

KEYWORDS: Fluorescence resonance energy transfer, Luminescence, Absorption, Quantum dots, Molecules, Absorbance, Spectroscopy, Excitons, Energy transfer, Zinc

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Proceedings Article | 8 September 2006 Paper

Surface plasmon control of excitation and fluorescence in optical biochips

Daniel Matthews, Huw Summers, Kerenza Njoh, Sally Chappell, Rachel Errington, Paul Smith

Proceedings Volume 6343, 634316 (2006) https://doi.org/10.1117/12.707706

KEYWORDS: Surface plasmons, Luminescence, Gold, Photons, Antennas, Semiconductor lasers, Metals, Microscopes, Interfaces, Plasmons

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Proceedings Article | 28 February 2006 Paper

Analysis of localized recombination in quantum dots

Huw Summers, Helen Pask, Peter Blood

Proceedings Volume 6115, 61151F (2006) https://doi.org/10.1117/12.661399

KEYWORDS: Electrons, Quantum dots, Systems modeling, Quantum wells, Control systems, Computing systems, Physics, Semiconductor lasers, Quantum dot lasers, Picosecond phenomena

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Proceedings Article | 21 February 2006 Paper

Screening far red probes for use on optical biochip devices

Kerenza Njoh, Laurence Patterson, Klaus Pors, Mire Zloh, Simon Ameer-Beg, Huw Summers, Daniel Matthews, Rachel Errington, Paul Smith

Proceedings Volume 6088, 60880H (2006) https://doi.org/10.1117/12.664713

KEYWORDS: Luminescence, Absorption, Quantum efficiency, Imaging spectroscopy, Cell death, Green fluorescent protein, Absorbance, Biological research, Sensors, Picosecond phenomena

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Proceedings Article | 1 September 2005 Paper

Time-resolved fluorescence measurements using stroboscopic excitation

Daniel Matthews, Huw Summers, Kerenza Njoh, Rachel Errington, Paul Smith, Simon Ameer-Beg, Boris Vojnovic

Proceedings Volume 5864, 586409 (2005) https://doi.org/10.1117/12.632914

KEYWORDS: Luminescence, Semiconductor lasers, Molecules, Picosecond phenomena, Sensors, Bioalcohols, Absorption, Time resolved spectroscopy, Fluorescence resonance energy transfer, Aluminium gallium indium phosphide

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SPIE Journal Paper | 1 May 2005 Open Access

Vertical-cavity semiconductor devices for fluorescence spectroscopy in biochips and microfluidic platforms

Pierpaolo Porta, Huw Summers

JBO, Vol. 10, Issue 03, 034001, (May 2005) https://doi.org/10.1117/12.10.1117/1.1925229

KEYWORDS: Luminescence, Optical filters, Semiconductors, Fluorescence spectroscopy, Sensors, Absorption, Light emitting diodes, Quantum wells, Microfluidics, Photodetectors

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Proceedings Article | 28 April 2005 Paper

Time-resolved fluorescence measurements using self-pulsing 650-nm laser diodes

Daniel Matthews, Huw Summers, Kerenza Njoh, Rachel Errington, Paul Smith, Simon Ameer-Beg, Boris Vojnovic

Proceedings Volume 5705, (2005) https://doi.org/10.1117/12.590201

KEYWORDS: Luminescence, Sensors, Semiconductor lasers, Signal detection, Absorption, Pulsed laser operation, Time resolved spectroscopy, Bioalcohols, Streak cameras, Signal processing

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Proceedings Article | 1 June 2004 Paper

Vertical-cavity semiconductor devices for fluorescence spectroscopy

Pierpaolo Porta, Huw Summers

Proceedings Volume 5331, (2004) https://doi.org/10.1117/12.528797

KEYWORDS: Independent component analysis, Gallium arsenide, Fluorescence spectroscopy, Quantum wells, Semiconductors, Absorption, Photovoltaics, Luminescence, Mirrors, Sensors

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Proceedings Article | 11 May 2004 Paper

Carrier distribution, spontaneous emission, and gain in self-assembled quantum dot lasers

Peter Smowton, Emma Pearce, Julie Lutti, Daniel Matthews, Huw Summers, Gareth Lewis, Peter Blood, Mark Hopkinson, Andrey Krysa

Proceedings Volume 5365, (2004) https://doi.org/10.1117/12.530429

KEYWORDS: Quantum dots, Indium gallium arsenide, Aluminum, Gallium, Quantum dot lasers, Absorption, Quantum wells, Gallium arsenide, Temperature metrology, Indium gallium phosphide

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Proceedings Article | 11 May 2004 Paper

Saturable absorber characteristics in quantum dot lasers

Daniel Matthews, Gareth Edwards, Huw Summers, Peter Smowton

Proceedings Volume 5365, (2004) https://doi.org/10.1117/12.528789

KEYWORDS: Quantum dots, Quantum wells, Quantum dot lasers, Absorption, Q switches, Semiconductor lasers, Temperature metrology, Lithium, Laser damage threshold, Mode locking

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Proceedings Article | 9 July 2001 Paper

Comparison of experimental and theoretical optical properties of GaInP lasers

Peter Smowton, Weng Chow, Gareth Lewis, Peter Blood, Huw Summers, John Thomson

Proceedings Volume 4283, (2001) https://doi.org/10.1117/12.432567

KEYWORDS: Quantum wells, Absorption, Solids, Gallium, Indium gallium phosphide, Aluminum, Electrons, Data modeling, Optical properties, Laser damage threshold

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Proceedings Article | 9 July 2001 Paper

Nonradiative recombination and efficiency of InGaN quantum well light-emitting diodes

G. B. Ren, Huw Summers, Peter Blood, Richard Perks, David Bour

Proceedings Volume 4283, (2001) https://doi.org/10.1117/12.432626

KEYWORDS: Indium gallium nitride, Quantum wells, Light emitting diodes, Temperature metrology, Quantum efficiency, Gallium nitride, Internal quantum efficiency, Electroluminescence, Sensors, Blood

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Proceedings Article | 14 July 2000 Paper

Measurement of optical gain and Fermi level separation in semiconductor structures

John Thomson, Huw Summers, P. Hulyer, Peter Smowton, Peter Blood

Proceedings Volume 3944, (2000) https://doi.org/10.1117/12.391422

KEYWORDS: Optical testing, Semiconductors, Quantum wells, Transparency, Waveguides, Semiconductor lasers, Magnetism, Calibration, Absorption, Polarization

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Proceedings Article | 7 July 1998 Paper

Theoretical and experimental analysis of the spontaneous emission and threshold current of edge-emitting Bragg microcavity laser structures

Graham Berry, Gareth Lewis, Huw Summers, Peter Blood, John Roberts

Proceedings Volume 3283, (1998) https://doi.org/10.1117/12.316687

KEYWORDS: Optical microcavities, Quantum wells, Mirrors, Reflectivity, Refractive index, Gallium arsenide, Polarization, Laser damage threshold, Transition metals, Waveguides

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Proceedings Article | 1 June 1994 Paper

Optimization of 670-nm strained quantum well laser diodes

Peter Smowton, Huw Summers, Paul Rees, Peter Blood

Proceedings Volume 2148, (1994) https://doi.org/10.1117/12.176614

KEYWORDS: Quantum wells, Gallium, Waveguides, Laser damage threshold, Cladding, Semiconductor lasers, Scattering, Laser optics, Optical interconnects, Polymer multimode waveguides

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Proceedings Article | 19 November 1993 Paper

Strained AlGaInP visible-emitting quantum-well lasers

Huw Summers, Peter Blood

Proceedings Volume 1985, (1993) https://doi.org/10.1117/12.162800

KEYWORDS: Aluminium gallium indium phosphide, Quantum wells, Gallium, Laser damage threshold

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Showing 5 of 29 publications

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