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Proceedings Paper

Resonator-QWIPs for 10.6 micron detection
Author(s): K. K. Choi; R. E. Bornfreund; J. G. Sun; E. A. DeCuir
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Paper Abstract

We designed R-QWIP devices for narrowband 10.6 μm detection. Despite the low doping of 0.2 and 0.3 × 1018 cm-3 and thin absorbing layer thickness of 1 μm, the observed QE is 29% and 26%, respectively. This level of QEs, combined with the large photoconductive gain in a thin layer, produces large conversion efficiencies of 20% and 15% for large photocurrents. The high photocurrent and low dark current brought by low doping thus allow the QWIPs to be BLIP at 65 K with an 11 μm cutoff. The projected NETD is 20 mK at 60 K, demonstrating the high performance of R-QWIPs.

Paper Details

Date Published: 3 May 2017
PDF: 8 pages
Proc. SPIE 10177, Infrared Technology and Applications XLIII, 101772A (3 May 2017); doi: 10.1117/12.2262514
Show Author Affiliations
K. K. Choi, U.S. Army Research Lab. (United States)
R. E. Bornfreund, FLIR Systems, Inc. (United States)
J. G. Sun, U.S. Army Research Lab. (United States)
E. A. DeCuir, U.S. Army Research Lab. (United States)

Published in SPIE Proceedings Vol. 10177:
Infrared Technology and Applications XLIII
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; John Lester Miller; Paul R. Norton, Editor(s)

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