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Modulation Transfer Function of Infrared Focal Plane ArraysModulation transfer function (MTF) is the ability of an imaging system to faithfully image a given object. The MTF of an imaging system quantifies the ability of the system to resolve or transfer spatial frequencies. In this presentation we will discuss the detail MTF measurements of 1024x1024 pixels mid -wavelength and long- wavelength quantum well infrared photodetector, and 320x256 pixels long- wavelength InAs/GaSb superlattice infrared focal plane arrays (FPAs). Long wavelength Complementary Barrier Infrared Detector (CBIRD) based on InAs/GaSb superlattice material is hybridized to recently designed and fabricated 320x256 pixel format ROIC. The n-type CBIRD was characterized in terms of performance and thermal stability. The experimentally measured NE delta T of the 8.8 micron cutoff n-CBIRD FPA was 18.6 mK with 300 K background and f/2 cold stop at 78K FPA operating temperature. The horizontal and vertical MTFs of this pixel fully delineated CBIRD FPA at Nyquist frequency are 49% and 52%, respectively.
Document ID
20170007029
Document Type
Conference Paper
External Source(s)
Authors
Gunapala, S. D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rafol, S. B. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ting, D. Z. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Soibel, A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hill, C. J. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Khoshakhlagh, A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Liu, J. K. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mumolo, J. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hoglund, L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Luong, E. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 1, 2017
Publication Date
August 9, 2015
Subject Category
Instrumentation and Photography
Meeting Information
SPIE Optics + Photonics(San Diego, CA)
Distribution Limits
Public
Copyright
Other
Keywords
long-wave infrared
superlattice
QWIP