Long-wavelength 640 x 484 GaAs/AlxGa1-xAs quantum well infrared photodetector focal plane array camera

Sarath D. Gunapala; Sumith V. Bandara; John K. Liu; Winn Hong; Mani Sundaram; Ronald J. Carralejo; C. A. Shott; Paul D. Maker; Richard E. Muller

doi:10.1117/12.280393

13 August 1997 Long-wavelength 640 x 484 GaAs/Al_xGa_1-xAs quantum well infrared photodetector focal plane array camera

Sarath D. Gunapala, Sumith V. Bandara, John K. Liu, Winn Hong, Mani Sundaram, Ronald J. Carralejo, C. A. Shott, Paul D. Maker, Richard E. Muller

Author Affiliations +

Proceedings Volume 3061, Infrared Technology and Applications XXIII; (1997) https://doi.org/10.1117/12.280393
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

A 9 micrometer cutoff 640 by 484 hand-held quantum well infrared photodetector (QWIP) camera has been demonstrated. Excellent imagery, with a noise equivalent differential temperature (NE(Delta) T) of 43 mK has been achieved. In this paper, we discuss the development of this very sensitive long wavelength infrared (LWIR) camera based on a GaAs/AlGaAs QWIP focal plane array (FPA) and its performance in quantum efficiency, NE(Delta) T, uniformity, and operability.

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Sarath D. Gunapala, Sumith V. Bandara, John K. Liu, Winn Hong, Mani Sundaram, Ronald J. Carralejo, C. A. Shott, Paul D. Maker, and Richard E. Muller "Long-wavelength 640 x 484 GaAs/Al_xGa_1-xAs quantum well infrared photodetector focal plane array camera", Proc. SPIE 3061, Infrared Technology and Applications XXIII, (13 August 1997); https://doi.org/10.1117/12.280393

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