15-um cut-off 128 x 128 quantum well infrared photodetectors (QWIPs) camera

Gabby Sarusi; Sarath D. Gunapala; Jin Suk Park; John K. Liu; T. L. Lin; Paul D. Maker; Richard E. Muller; Barry F. Levine

doi:10.1117/12.218247

8 September 1995 15-um cut-off 128 x 128 quantum well infrared photodetectors (QWIPs) camera

Gabby Sarusi, Sarath D. Gunapala, Jin Suk Park, John K. Liu, T. L. Lin, Paul D. Maker, Richard E. Muller, Barry F. Levine

Author Affiliations +

Proceedings Volume 2552, Infrared Technology XXI; (1995) https://doi.org/10.1117/12.218247
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We discuss the development and the performances of a very long wavelength (13.5 - 15 micrometer) 128 by 128 AlGaAs/GaAs multiquantum well infrared imaging system. A highly uniform, high-yield QWIP focal plane array was hybridized to a CMOS multiplexer operating in a direct injection mode. For efficient light coupling an integral random scattering reflector (random grating) was incorporated. Due to the high uniformity, excellent imagery, low noise as well as a noise equivalent temperature difference (NE(Delta) T) of less than 30 mK were obtained when operating around 45 K. Therefore, high image contrast signal to noise ratio has been achieved.

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Gabby Sarusi, Sarath D. Gunapala, Jin Suk Park, John K. Liu, T. L. Lin, Paul D. Maker, Richard E. Muller, and Barry F. Levine "15-um cut-off 128 x 128 quantum well infrared photodetectors (QWIPs) camera", Proc. SPIE 2552, Infrared Technology XXI, (8 September 1995); https://doi.org/10.1117/12.218247

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