Dr. John L. Bradshaw Profile

Dr. John L. Bradshaw

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Author

Publications (15)

Proceedings Article | 24 May 2012 Paper

Correlation of mid-infrared quantum-cascade laser performance with laser design parameters

R. Leavitt, J. Bradshaw, K. Lascola, F. Towner, J. Pham, J. Bruno, C. Gmachl, P. Liu

Proceedings Volume 8381, 83810D (2012) https://doi.org/10.1117/12.918632

KEYWORDS: Semiconducting wafers, Quantum cascade lasers, Laser development, Mid-IR, Doping, Laser applications, Pulsed laser operation, Continuous wave operation, Laser welding, Active optics

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Proceedings Article | 18 May 2012 Paper

High-performance interband cascade lasers emitting between 3.3 and 3.5 microns

J. Bruno, R. Leavitt, J. Bradshaw, K. Lascola, J. Pham, F. Towner

Proceedings Volume 8374, 83740L (2012) https://doi.org/10.1117/12.919346

KEYWORDS: Quantum cascade lasers, Continuous wave operation, Gallium antimonide, Semiconductor lasers, Laser applications, Laser damage threshold, Laser development, Cladding, Pulsed laser operation

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Proceedings Article | 18 May 2012 Paper

Monolithic widely tunable quantum cascade laser

Kevin Lascola, Richard Leavitt, John Bruno, John Bradshaw, John Pham, Frederick Towner

Proceedings Volume 8374, 83740K (2012) https://doi.org/10.1117/12.919325

KEYWORDS: Waveguides, Quantum cascade lasers, Semiconductor lasers, Tunable lasers, Refraction, Scattering, Laser applications, Mid-IR, Long wavelength infrared, Waveguide modes

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Proceedings Article | 9 February 2012 Paper

High performance interband cascade lasers at 3.8 microns

R. Leavitt, J. Bruno, J. Bradshaw, K. Lascola, J. Pham, F. Towner, S. Suchalkin, G. Belenky, I. Vurgaftman, C. Canedy, W. Bewley, C. S. Kim, M. Kim, C. Merritt, J. Meyer

Proceedings Volume 8277, 82771E (2012) https://doi.org/10.1117/12.910586

KEYWORDS: Continuous wave operation, Pulsed laser operation, Semiconductor lasers, Laser damage threshold, Quantum cascade lasers, Laser applications, Antimony, Temperature metrology, Quantum efficiency

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Proceedings Article | 12 May 2011 Paper

Small low-power consumption CO-sensor for post-fire cleanup aboard spacecraft

John Bradshaw, John Bruno, Kevin Lascola, Richard Leavitt, John Pham, Frederick Towner, David Sonnenfroh, Krishnan Parameswaran

Proceedings Volume 8032, 80320D (2011) https://doi.org/10.1117/12.887517

KEYWORDS: Absorption, Sensors, Quantum cascade lasers, Signal detection, Carbon monoxide, Spectroscopy, Modulation, Prototyping, Space operations, Gas lasers

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SPIE Journal Paper | 1 November 2010

High-performance quantum cascade lasers in the 7.3- to 7.8-µm wavelength band using strained active regions

Richard Leavitt, John Bradshaw, Kevin Lascola, Gregory Meissner, Frankie Micalizzi, Fredrick Towner, John Pham

OE, Vol. 49, Issue 11, 111109, (November 2010) https://doi.org/10.1117/12.10.1117/1.3498758

KEYWORDS: Quantum cascade lasers, Continuous wave operation, Semiconducting wafers, Temperature metrology, Laser development, Waveguides, Pulsed laser operation, Optical engineering, Laser scattering, Laser damage threshold

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Proceedings Article | 4 May 2010 Paper

Interband cascade resonant cavity surface emitting LEDs for 2D-array scene projectors

John Bradshaw, John Bruno, Kevin Lascola, Gregory Meissner, John Pham, Frederick Towner

Proceedings Volume 7663, 76630C (2010) https://doi.org/10.1117/12.853111

KEYWORDS: Light emitting diodes, Vertical cavity surface emitting lasers, Mid-IR, Black bodies, Projection systems, Mirrors, Thermography, Infrared imaging, Infrared radiation, Scene simulation

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Proceedings Article | 7 May 2009 Paper

Wavelength beam combined quantum cascade lasers for IRCM

John Bradshaw, Richard Tober, John Bruno, Richard Leavitt, Kevin Lascola, Gregory Meissner, John Pham

Proceedings Volume 7325, 73250K (2009) https://doi.org/10.1117/12.819464

KEYWORDS: Quantum cascade lasers, Output couplers, Infrared countermeasures, Laser sources, Pulsed laser operation, Laser applications, Reliability, Continuous wave operation, Laser development, Mirrors

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Proceedings Article | 16 April 2008 Paper

Development of a mid-infrared interband cascade LED array

John Bradshaw, John Bruno, Frederick Towner, Christi Shiner, John Pham, Sergey Suchalkin, Gregory Belenky

Proceedings Volume 6942, 69420G (2008) https://doi.org/10.1117/12.780325

KEYWORDS: Light emitting diodes, Mid-IR, Black bodies, Cladding, Resistors, Sensors, Modulation, Infrared radiation, Microscopes, Chemical elements

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Proceedings Article | 29 December 2004 Paper

Interband cascade lasers: progress and outlook

John Bruno, John Bradshaw, Nicholas Breznay, John Gomes, Richard Tober, Mary Tobin, Frederick Towner

Proceedings Volume 5617, (2004) https://doi.org/10.1117/12.583531

KEYWORDS: Quantum cascade lasers, Light emitting diodes, Continuous wave operation, Waveguides, Gallium antimonide, Cladding, Quantum wells, Indium arsenide, Electroluminescence

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Proceedings Article | 4 August 2004 Paper

Design and fabrication of 2xD light emitting device arrays for IR scene projection

Naresh Das, George Simonis, John Bradshaw, Arnie Goldberg, Neelam Gupta

Proceedings Volume 5408, (2004) https://doi.org/10.1117/12.564347

KEYWORDS: Light emitting diodes, Temperature metrology, Resistors, Infrared cameras, Infrared radiation, Gallium antimonide, Black bodies, Analytical research, Sensors, Light

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Proceedings Article | 6 June 2001 Paper

Mid-IR interband cascade lasers: progress toward high performance

John Bruno, Rui Q. Yang, John Bradshaw, John Pham, Donald Wortman

Proceedings Volume 4287, (2001) https://doi.org/10.1117/12.429783

KEYWORDS: Continuous wave operation, Semiconductor lasers, Quantum cascade lasers, Mid-IR, Resistance, Quantum efficiency, Laser damage threshold, Quantum wells, Pulsed laser operation

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Proceedings Article | 18 July 2000 Paper

High-power mid-IR type-II interband cascade lasers

John Bruno, Rui Q. Yang, John Bradshaw, John Pham, Donald Wortman

Proceedings Volume 4042, (2000) https://doi.org/10.1117/12.391912

KEYWORDS: Laser damage threshold, Quantum cascade lasers, Semiconductor lasers, Continuous wave operation, Quantum efficiency, Quantum wells, Electrons, Resistance, Mid-IR, Gallium antimonide

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Proceedings Article | 14 July 2000 Paper

Recent advances in type-II interband cascade lasers

Rui Q. Yang, John Bradshaw, John Bruno, John Pham, Donald Wortman

Proceedings Volume 3944, (2000) https://doi.org/10.1117/12.391437

KEYWORDS: Quantum cascade lasers, Continuous wave operation, Semiconductor lasers, Laser damage threshold, Quantum efficiency, Quantum wells, Electrons, External quantum efficiency, Gallium antimonide, Resistance

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Proceedings Article | 18 April 2000 Paper

Mid-IR type-II InAs/GaInSb interband cascade lasers

John Bradshaw, Rui Q. Yang, John Bruno, John Pham, Donald Wortman

Proceedings Volume 3947, (2000) https://doi.org/10.1117/12.382090

KEYWORDS: Quantum cascade lasers, Continuous wave operation, Pulsed laser operation, Mid-IR, External quantum efficiency, Quantum efficiency, Quantum wells, Semiconductor lasers, Gallium antimonide

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Showing 5 of 15 publications

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