2004•NASA Technical Reports Server (NASA)Requires access
Megapixel multi-band QWIP focal plane arrays
Sarath D. Gunapala, Sumith V. Bandara, J. K. Liu, S. B. Rafo, Cory J. Hill, Jason M. Mumolo, J. Thang, Meimei Z. Tidrow, Paul D. LeVan
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Abstract
A mid-wavelength 1024x1024 pixel quantum well infrared photodetector (QW) focal plane array has been demonstrated with excellent imagery. Noise equivalent differential temperature (NETD) of 19 mK was achieved at 95K operating temperature with f/2.5 optics at 300K background. This focal plane array has shown background limited performance (BLIP) at 90K operating temperature with the same optics and background conditions. In this paper, we will discuss its performance in quantum efficiency, NETD, uniformity, and operability.