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Proceedings Paper

NIR/LWIR dual-band infrared photodetector with optical addressing
Author(s): O. O. Cellek; H. S. Kim; J. L. Reno; Y.-H. Zhang
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Paper Abstract

A near infrared (NIR) and long-wavelength infrared (LWIR) dual-band infrared photodetector, which can switch detection bands with light bias, is demonstrated at 77 K. The demonstrated scheme consists of series connected photodetectors for different bands. The basic operating principle of the scheme is that without light bias, shorter wavelength detector limits the total current and thus the device operates in NIR mode. With light bias on the NIR detector, the LWIR detector becomes the current limiting device and the device then operates in LWIR mode. Proposed design allows single indium-bump per pixel focal plane arrays, and in principle allows covering all tactical bands such as UV, visible, NIR, SWIR, MWIR and LWIR bands with a single pixel.

Paper Details

Date Published: 31 May 2012
PDF: 6 pages
Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 83533E (31 May 2012); doi: 10.1117/12.920862
Show Author Affiliations
O. O. Cellek, Arizona State Univ. (United States)
H. S. Kim, Arizona State Univ. (United States)
J. L. Reno, Sandia National Labs. (United States)
Y.-H. Zhang, Arizona State Univ. (United States)

Published in SPIE Proceedings Vol. 8353:
Infrared Technology and Applications XXXVIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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