640x512 pixel four-band, broadband, and narrowband quantum well infrared photodetector focal plane arrays

Sarath D. Gunapala; Sumith V. Bandara; John K. Liu; S. B. Rafol; C. A. Shott; Richard W. Jones; Stanley Laband; James T. Woolaway II; J. M. Fastenau; A. K. Liu; Murzy D. Jhabvala; Kwong-Kit Choi

doi:10.1117/12.453574

23 January 2003 640×512 pixel four-band, broadband, and narrowband quantum well infrared photodetector focal plane arrays

Sarath D. Gunapala, Sumith V. Bandara, John K. Liu, S. B. Rafol, C. A. Shott, Richard W. Jones, Stanley Laband, James T. Woolaway II, J. M. Fastenau, A. K. Liu, Murzy D. Jhabvala, Kwong-Kit Choi

Author Affiliations +

Proceedings Volume 4820, Infrared Technology and Applications XXVIII; (2003) https://doi.org/10.1117/12.453574
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

A 9 μm cutoff 640×512 pixel hand-held quantum well IR photodetector (QWIP) camera has been demonstrated wiht excellent imagery. Based on the single pixel test data, a nose equivalent differential temperature (NETD) of 8 mK is expected at 65K operating temperature with f/2 optics at 300K background. This focal plane array has shown backgeround lmiited performance at 72K operating temperature with the same optics and background conditions. In this paper, we discuss the development of this very sensitive long wavelength IR (LWIR) camera based on a GaAs/AlGaAs QWIP focal plane array and its performance in quantum efficiency, NETD, uniformity, and operability.

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Sarath D. Gunapala, Sumith V. Bandara, John K. Liu, S. B. Rafol, C. A. Shott, Richard W. Jones, Stanley Laband, James T. Woolaway II, J. M. Fastenau, A. K. Liu, Murzy D. Jhabvala, and Kwong-Kit Choi "640×512 pixel four-band, broadband, and narrowband quantum well infrared photodetector focal plane arrays", Proc. SPIE 4820, Infrared Technology and Applications XXVIII, (23 January 2003); https://doi.org/10.1117/12.453574

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