Comparison of intersubband GaAs/AlGaAs multiple quantum well infrared photodetectors on GaAs and GaAs-on-Si substrates

Deepak K. Sengupta; Sarath D. Gunapala; Thomas George; Sumith V. Bandara; C.-N. Chang-Chien; Rosa Leon; S. Kayali; Haochung Kuo; Wei-Chiao W. Fang; Hui Chun Liu; Gregory E. Stillman

doi:10.1117/12.317609

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22 July 1998 Comparison of intersubband GaAs/AlGaAs multiple quantum well infrared photodetectors on GaAs and GaAs-on-Si substrates

Deepak K. Sengupta; Sarath D. Gunapala; Thomas George; Sumith V. Bandara; C.-N. Chang-Chien; Rosa Leon; S. Kayali; Haochung Kuo; Wei-Chiao W. Fang; Hui Chun Liu; Gregory E. Stillman

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Proceedings Volume 3379, Infrared Detectors and Focal Plane Arrays V; (1998) https://doi.org/10.1117/12.317609
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

We have successfully fabricated intersubband GaAs/AlGaAs quantum well infrared photodetectors grown on GaAs-on-Si substrate and evaluated their structural, electrical, and optical characteristics. We have found that the performance is comparable to a similar detector structure grown on a semi- insulating GaAs substrate. The results are promising for applications in the important 8 - 12 micrometer atmospheric window.

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Deepak K. Sengupta, Sarath D. Gunapala, Thomas George, Sumith V. Bandara, C.-N. Chang-Chien, Rosa Leon, S. Kayali, Haochung Kuo, Wei-Chiao W. Fang, Hui Chun Liu, and Gregory E. Stillman "Comparison of intersubband GaAs/AlGaAs multiple quantum well infrared photodetectors on GaAs and GaAs-on-Si substrates", Proc. SPIE 3379, Infrared Detectors and Focal Plane Arrays V, (22 July 1998); https://doi.org/10.1117/12.317609

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