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Proceedings Paper

QWIP characteristics, performance, advantages, opportunities, and issues
Author(s): Hui Chun Liu
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Paper Abstract

This paper addresses the following topics at an easy-to- understand physics level. We present simple analytical formulas in estimating the performance characteristics of quantum well IR photodetectors (QWIPs), including detectivity and temperature for background limited IR performance. We identify key parameters and their relations to the detector performance. We point out possible directions for future work to improve the performance. Features and opportunities of the QWIP technology are also pointed out and discussed. The shortcomings are also discussed, including low operating temperature. A brief comparison with other IR detector technologies is made. Note that all discussions here apply to QWIPs based on GaAs using electron intersubband transitions.

Paper Details

Date Published: 11 August 1998
PDF: 9 pages
Proc. SPIE 3553, Detectors, Focal Plane Arrays, and Imaging Devices II, (11 August 1998); doi: 10.1117/12.318095
Show Author Affiliations
Hui Chun Liu, National Research Council Canada (Canada)


Published in SPIE Proceedings Vol. 3553:
Detectors, Focal Plane Arrays, and Imaging Devices II
Pingzhi Liang; Marc Wigdor; William G. D. Frederick, Editor(s)

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