25 March 2005 Megapixel QWIP focal plane array and 320x256 pixel colocated mid-wave and long-wave dual-band QWIP focal plane array
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Abstract
Mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) 1024x1024 pixel quantum well infrared photodetector (QWIP) focal planes have been demonstrated with excellent imaging performance. The MWIR QWIP detector array has demonstrated a noise equivalent differential temperature (NEΔT) of 17 mK at a 95K operating temperature with f/2.5 optics at 300K background and the LWIR detector array has demonstrated a NEΔT of 13 mK at a 70K operating temperature with the same optical and background conditions as the MWIR detector array. Both MWIR and LWIR focal planes have shown background limited performance (BLIP) at 90K and 70K operating temperatures respectively, with similar optical and background conditions. In this paper, we will discuss the performance in terms of quantum efficiency, NEΔT, uniformity, operability, and modulation transfer functions.
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Sarath D. Gunapala, Sumith V. Bandara, John K. Liu, Cory J. Hill, Sir B. Rafol, Jason M. Mumolo, J. T. Trinh, Meimei Z. Tidrow, Paul D. LeVan, "Megapixel QWIP focal plane array and 320x256 pixel colocated mid-wave and long-wave dual-band QWIP focal plane array", Proc. SPIE 5732, Quantum Sensing and Nanophotonic Devices II, (25 March 2005); doi: 10.1117/12.586043; https://doi.org/10.1117/12.586043
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