14 September 2016 1/f noise QWIPs, superlattice, and nBn detectors
Author Affiliations +
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.
Conference Presentation
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S. D. Gunapala, S. D. Gunapala, S. B. Rafol, S. B. Rafol, D. Z. Ting, D. Z. Ting, A. Soibel, A. Soibel, C. J. Hill, C. J. Hill, A. Khoshakhlagh, A. Khoshakhlagh, J. Nguyen, J. Nguyen, L. Baker, L. Baker, A. Fisher, A. Fisher, J. K. Liu, J. K. Liu, J. M. Mumolo, J. M. Mumolo, S. A. Keo, S. A. Keo, B. Pepper, B. Pepper, } "1/f noise QWIPs, superlattice, and nBn detectors", Proc. SPIE 9973, Infrared Remote Sensing and Instrumentation XXIV, 997302 (14 September 2016); doi: 10.1117/12.2236556; https://doi.org/10.1117/12.2236556
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