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Proceedings Paper

Interband cascade infrared photodetectors
Author(s): Zhaobing Tian; Zhihua Cai; Rui Q. Yang; Tetsuya D. Mishima; Michael B. Santos; Matthew B. Johnson; J. F. Klem
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Paper Abstract

Interband cascade (IC) infrared (IR) photodetectors (ICIPs) are a new type of detector that combines features of conventional interband photodiodes with the discrete nature of quantum-well IR photodetectors (QWIPs) and IC lasers. The operation of ICIPs takes advantage of fast intersubband relaxation and interband tunneling for carrier transport, and relatively slow interband transitions (long lifetime) for photon generation. As such, ICIPs can be tailored to optimize device performance for specific application requirements. We report our initial efforts in the development of ICIPs. We have observed the photocurrent from an InAs-based IC laser with a cutoff wavelength near 8 μm at 80 K, and significant photocurrent from GaSb-based ICIPs with cutoff wavelengths near 5 μm at 80 K and 7 μm at above room temperature.

Paper Details

Date Published: 23 January 2010
PDF: 8 pages
Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76081X (23 January 2010); doi: 10.1117/12.842052
Show Author Affiliations
Zhaobing Tian, Univ. of Oklahoma (United States)
Zhihua Cai, Univ. of Oklahoma (United States)
Rui Q. Yang, Univ. of Oklahoma (United States)
Tetsuya D. Mishima, Univ. of Oklahoma (United States)
Michael B. Santos, Univ. of Oklahoma (United States)
Matthew B. Johnson, Univ. of Oklahoma (United States)
J. F. Klem, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 7608:
Quantum Sensing and Nanophotonic Devices VII
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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