Dr. James A. Gupta Profile

Dr. James A. Gupta

Sr. Researcher Officer at National Research Council Canada

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 31 January 2020 Paper

Pressure-dependent sensitivity of battery based methane detection system using tunable diode laser at 3270 nm

James Gupta, Graeme Sabiston, Nicaulas Sabourin, Andrew Bezinger, Jean Lapointe, Daniel Poitras, Seyed Ghasem Razavipour

Proceedings Volume 11288, 1128822 (2020) https://doi.org/10.1117/12.2545014

KEYWORDS: Modulation, Methane, Absorption, Tunable diode lasers, Unmanned aerial vehicles, Semiconductor lasers, Infrared spectroscopy, Absorption spectroscopy

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Proceedings Article | 13 March 2019 Presentation

Low-threshold InAs-based interband cascade lasers with room-temperature emission at 6.3 um (Conference Presentation)

James Gupta, Xiaohua Wu, Geof Aers, Yiyun Li, Lu Li, Wenxiang Huang, Rui Yang

Proceedings Volume 10939, 109390Y (2019) https://doi.org/10.1117/12.2508045

KEYWORDS: Quantum cascade lasers, Semiconductor lasers, Mid-IR, Cladding, Laser applications, Quantum efficiency, Molecular beam epitaxy, Waveguides, Superlattices, Plasmonics

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SPIE Journal Paper | 23 December 2017

High-temperature and low-threshold interband cascade lasers at wavelengths longer than 6 μm

S. M. Shazzad Rassel, Lu Li, Yiyun Li, Rui Yang, James Gupta, Xiaohua Wu, Geof Aers

OE, Vol. 57, Issue 01, 011021, (December 2017) https://doi.org/10.1117/12.10.1117/1.OE.57.1.011021

KEYWORDS: Quantum cascade lasers, Laser damage threshold, Continuous wave operation, Pulsed laser operation, Quantum wells, Indium arsenide, Lithium, Semiconductor lasers, Laser development, Gallium antimonide

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Proceedings Article | 28 April 2017 Presentation

Monolithically-integrated mid-infrared interband cascade lasers and photodetectors (Conference Presentation)

Hossein Lotfi, SM Shazzad Rassel, Lu Li, Cédric Corrége, Rui Yang, Preston Larson, James Gupta, Matthew Johnson

Proceedings Volume 10111, 101110M (2017) https://doi.org/10.1117/12.2252542

KEYWORDS: Optical instrument design, Infrared lasers, Mid-IR, Sensors, Photodetectors, Quantum cascade lasers, Photonics systems, Infrared ROIC, Continuous wave operation, Infrared imaging

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Proceedings Article | 28 April 2017 Presentation

GaSb-based single-mode distributed feedback lasers for sensing (Conference Presentation)

James Gupta, Andrew Bezinger, Jean Lapointe, Daniel Poitras, Geof Aers

Proceedings Volume 10107, 101070M (2017) https://doi.org/10.1117/12.2252951

KEYWORDS: Tunable lasers, Photonics, Absorption spectroscopy, Laser development, Semiconductor lasers, Sensing systems, Gases, Etching, Waveguides, Optoelectronics

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SPIE Journal Paper | 7 April 2017

Design of thin InGaAsN(Sb) n-i-p junctions for use in four-junction concentrating photovoltaic devices

Matthew Wilkins, James Gupta, Abdelatif Jaouad, Boussairi Bouzazi, Simon Fafard, Abderraouf Boucherif, Christopher Valdivia, Richard Arès, Vincent Aimez, Henry Schriemer, Karin Hinzer

JPE, Vol. 7, Issue 02, 022502, (April 2017) https://doi.org/10.1117/12.10.1117/1.JPE.7.022502

KEYWORDS: Sun, Gallium arsenide, Doping, Diffusion, Germanium, Resistance, Solar concentrators, Solar cells, Semiconducting wafers, Annealing

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Proceedings Article | 20 May 2016 Paper

Recent developments in interband cascade infrared photodetectors

Hossein Lotfi, Lu Li, Rui Yang, John Klem, Matthew Johnson, Lin Lei, Hao Ye, SM Shazzad Rassel, Yuchao Jiang, Michael Santos, Tetsuya Mishima, James Gupta

Proceedings Volume 9819, 98190Q (2016) https://doi.org/10.1117/12.2235086

KEYWORDS: Infrared radiation, Photodetectors, Short wave infrared radiation, Infrared photography, Diffusion, Mid-IR, Stereolithography, Sensors, Resistance, Temperature metrology

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Proceedings Article | 26 January 2009 Paper

Designing phonons for active use in terahertz devices

Z. Wasilewski, C. Y. Song, M. Buchanan, J. Gupta, H. C. Liu

Proceedings Volume 7222, 72220X (2009) https://doi.org/10.1117/12.807532

KEYWORDS: Phonons, Absorption, Quantum wells, Gallium arsenide, Quantum well infrared photodetectors, Quantum optics, Sensors, Raman spectroscopy, Semiconductors, Structural design

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Proceedings Article | 26 January 2009 Paper

Single-mode 2.4um InGaAsSb/AlGaAsSb distributed feedback lasers for gas sensing

James Gupta, Craig Storey, Philip Waldron, Pedro Barrios, Jean Lapointe, Daniel Poitras, Geof Aers

Proceedings Volume 7222, 72220A (2009) https://doi.org/10.1117/12.817849

KEYWORDS: Gas lasers, Nanophotonics, Current controlled current source, Semiconductor lasers, Gallium antimonide, Laser development, Quantum wells, Molecular beam epitaxy, Chromium, Optical design

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Proceedings Article | 29 January 2008 Paper

Characteristics of GaInNAsSb/GaAs VCSELs operating near 1.55um

David Burns, James Gupta, Daniel Poitras, Martin Dawson, Nicolas Laurand, Stephane Calvez, Geof Aers, Jelmer Weda

Proceedings Volume 6908, 69080E (2008) https://doi.org/10.1117/12.763829

KEYWORDS: Vertical cavity surface emitting lasers, Reflectivity, Semiconductor lasers, Annealing, High power lasers, Pulsed laser operation, Molecular beam epitaxy, Gallium arsenide, Distributed Bragg reflectors, Quantum wells

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Proceedings Article | 14 January 2008 Paper

Quantum dots for terahertz devices

J. Gupta, Z. Wasilewski, A. SpringThorpe, B. Aslan, H. C. Liu, G. Aers, M. Buchanan

Proceedings Volume 6840, 684011 (2008) https://doi.org/10.1117/12.759892

KEYWORDS: Quantum wells, Terahertz radiation, Gallium arsenide, Quantum dots, Doping, Magnetism, Indium arsenide, Superlattices, Silicon, Stereolithography

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Proceedings Article | 8 February 2007 Paper

Properties of GaInNAsSb narrow ridge waveguide laser diodes in continuous-wave operation at 1.55um

James Gupta, Greg Pakulski, Xiaohua Wu, Geof Aers, Daniel Poitras, Juan Caballero, Pedro Barrios

Proceedings Volume 6485, 64850S (2007) https://doi.org/10.1117/12.714271

KEYWORDS: Continuous wave operation, Modulation, Transparency, Fabry–Perot interferometers, Gallium arsenide, Quantum wells, Waveguides, Waveguide lasers, Semiconductor lasers

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Proceedings Article | 22 February 2006 Paper

Properties of a High T0 1.3µm GaInNAs/GaAs Quantum Well Laser Diode

J. Gupta, T. Hall, P. Barrios, G. Pakulski, A. Delage, X. Wu, X. Zhang

Proceedings Volume 6133, 613313 (2006) https://doi.org/10.1117/12.646541

KEYWORDS: Quantum wells, Transparency, Gallium arsenide, Temperature metrology, Semiconductor lasers, Internal quantum efficiency, Electrons, Laser damage threshold, Gallium, Measurement devices

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Proceedings Article | 28 April 2005 Paper

Pressure tuning of GaInNAs laser diodes in external cavity

A. Bercha, G. Pakulski, R. Bohdan, F. Dybala, K. Komorowska, P. Barrios, P. Adamiec, W. Trzeciakowski, J. Gupta, A. Delage, Z. Wasilewski

Proceedings Volume 5722, (2005) https://doi.org/10.1117/12.611325

KEYWORDS: Semiconductor lasers, Gallium arsenide, Mirrors, Liquids, Wavelength tuning, Gallium, Polishing, Diodes, Aluminum, Quantum wells

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Proceedings Article | 20 December 2004 Paper

Transparency current density of GaInNAs lasers

Pedro Barrios, Edith Post, Greg Pakulski, Andre Delage, Zbigniew Wasilewski, James Gupta, Daniel Poitras, Xiaohua Wu

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.567550

KEYWORDS: Transparency, Quantum wells, Polarization, Gallium arsenide, Gallium, Annealing, Temperature metrology, Waveguide lasers, Plasma, Waveguides

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Showing 5 of 15 publications

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