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Title: 1024 x 1024 pixel mid-wavelength and long-wavelength infrared QWIP focal plane arrays for imaging applications
Authors: Gunapala, S. D.
Bandara, S. V.
Liu, J. K.
Hill, C. J.
Rafol, S. B.
Mumolo, J. M.
Trinh, J. T.
Tidrow, M. Z.
LeVan, P. D.
Keywords: quantum efficiency,
modulation transfer
Issue Date: May-2005
Publisher: Institute of Physics Publishing
Citation: Semiconductor Science and Technology. 20 (2005) 473–480, doi:10.1088/0268-1242/20/5/026
Abstract: Mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) 10(24) x 10(24) 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 (NEAT) of 17 mK at a 95 K operating temperature with f/2.5 optics at 300 K background and the LWIR detector array has demonstrated a NEAT of 13 mK at a 70 K operating temperature with the same optical and background conditions as the MWIR detector array after the subtraction of system noise. Both MWIR and LWIR focal planes have shown background limited performance (BLIP) at 90 K and 70 K 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.
Appears in Collections:JPL TRS 1992+

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