Resonator-QWIP FPA development

K. K. Choi; J. Sun; K. Olver

doi:10.1117/12.2176446

4 June 2015 Resonator-QWIP FPA development

K. K. Choi, J. Sun, K. Olver

Proceedings Volume 9451, Infrared Technology and Applications XLI; 94512K (2015) https://doi.org/10.1117/12.2176446
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

Previously, we adopted the resonator-QWIPs and increased the FPA QE to 30 − 40%. In this work, we performed a systematic theoretical analysis on the potential performance based on this new detector structure. In this analysis, the doping density and the number of quantum wells are varied to obtain different detector characteristics. For 25 μm pixel pitch, 10 Me⁻ integrated charge, and F/2 optics, the analysis shows that a 9.2 μm cutoff R-QWIP optimized for high temperature operation could provide 20 mK NEΔT at τ_int = 2.6 ms when operating at T = 80 K. An R-QWIP with a 10.2 μm cutoff could achieve the same with τ_int = 1.3 ms at T = 74 K. Similar NEΔT can also be achieved with smaller pixel pitch down to 6 μm for both cutoffs with a more relaxed operating condition where the f-number is 1, τ_int is 5 ms, and T is 70 K. We provide preliminary test detector data to support this analysis.

Citation Download Citation

K. K. Choi, J. Sun, and K. Olver "Resonator-QWIP FPA development", Proc. SPIE 9451, Infrared Technology and Applications XLI, 94512K (4 June 2015); https://doi.org/10.1117/12.2176446

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