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Proceedings Paper

Mid/far-infrared photodetection based on resonant frequency up-conversion in coupled quantum wells
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Paper Abstract

We propose and theoretically investigate mid/far-infrared photodetectors based on frequency up-conversion in a near-resonant cascade of interband and intersubband transitions in high optical nonlinearity asymmetric quantum well structures. Such structures can yield high detectivity and responsivity in the bandwidth of the order of 30% of a central frequency in the mid-infrared range. Resonant up-conversion detectors can be designed for both collinear and perpendicular pump and signal beams. They can be integrated with semiconductor pump lasers to yield compact devices. We present specific device designs based on GaAs/AlGaAs and InGaAs/AlInAs heterostructures and calculate their expected figures of merit.

Paper Details

Date Published: 22 February 2008
PDF: 10 pages
Proc. SPIE 6889, Physics and Simulation of Optoelectronic Devices XVI, 688914 (22 February 2008); doi: 10.1117/12.760992
Show Author Affiliations
Aleksander K. Wójcik, Texas A&M Univ. (United States)
Feng Xie, Texas A&M Univ. (United States)
V. R. Chaganti, Texas A&M Univ. (United States)
Alexey Belyanin, Texas A&M Univ. (United States)
Junichiro Kono, Rice Univ. (United States)

Published in SPIE Proceedings Vol. 6889:
Physics and Simulation of Optoelectronic Devices XVI
Marek Osinski; Fritz Henneberger; Keiichi Edamatsu, Editor(s)

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