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Proceedings Paper

1/f noise QWIPs, superlattice, and nBn detectors
Author(s): S. D. Gunapala; S. B. Rafol; D. Z. Ting; A. Soibel; C. J. Hill; A. Khoshakhlagh; J. Nguyen; L. Baker; A. Fisher; J. K. Liu; J. M. Mumolo; S. A. Keo; B. Pepper
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Paper Abstract

The low-frequency noise is a ubiquitous phenomenon and the spectral power density of this fluctuation process is inversely proportional to the frequency of the signal. We have measured the 1/f noise of a 640x512 pixel quantum well infrared photodetector (QWIP) focal plane array (FPA) with 6.2 μm peak wavelength. Our experimental observations show that this QWIP FPA’s 1/f noise corner frequency is about 0.1 mHz. With this kind of low frequency stability, QWIPs could unveil a new class of infrared applications that have never been imagined before. Furthermore, we present the results from a similar 1/f noise measurement of bulk InAsSb absorber (lattice matched to GaSb substrate) nBn detector array with 4.0 μm cutoff wavelength.

Paper Details

Date Published: 14 September 2016
PDF: 11 pages
Proc. SPIE 9973, Infrared Remote Sensing and Instrumentation XXIV, 997302 (14 September 2016); doi: 10.1117/12.2236556
Show Author Affiliations
S. D. Gunapala, Jet Propulsion Lab. (United States)
S. B. Rafol, Jet Propulsion Lab. (United States)
D. Z. Ting, Jet Propulsion Lab. (United States)
A. Soibel, Jet Propulsion Lab. (United States)
C. J. Hill, Jet Propulsion Lab. (United States)
A. Khoshakhlagh, Jet Propulsion Lab. (United States)
J. Nguyen, Jet Propulsion Lab. (United States)
L. Baker, Jet Propulsion Lab. (United States)
A. Fisher, Jet Propulsion Lab. (United States)
J. K. Liu, Jet Propulsion Lab. (United States)
J. M. Mumolo, Jet Propulsion Lab. (United States)
S. A. Keo, Jet Propulsion Lab. (United States)
B. Pepper, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 9973:
Infrared Remote Sensing and Instrumentation XXIV
Marija Strojnik, Editor(s)

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