Extended cut-off wavelength nBn detector utilizing InAsSb/InSb digital alloy absorber

A. Soibel; D. Z. Ting; C. J. Hill; Anita M. Fisher; Linda Hoglund; Sam A. Keo; Sarath D. Gunapala

doi:10.1117/12.2251703

27 January 2017 Extended cut-off wavelength nBn detector utilizing InAsSb/InSb digital alloy absorber

A. Soibel, D. Z. Ting, C. J. Hill, Anita M. Fisher, Linda Hoglund, Sam A. Keo, Sarath D. Gunapala

Proceedings Volume 10111, Quantum Sensing and Nano Electronics and Photonics XIV; 1011114 (2017) https://doi.org/10.1117/12.2251703
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

We investigated a novel approach to extend a cut-off wavelength of Sb-based nBn detectors. We incorporated a series of single InSb monolayer into InAsSb bulk that allowed to realize a digital alloy absorber with an extended cut-off wavelength of λ = 4.6 μm at T = 200 K. The cut-off wavelength extension to 4.6μm is technologically important for realization of detectors covering CO₂ absorption line at 4.26μm.

Citation Download Citation

A. Soibel, D. Z. Ting, C. J. Hill, Anita M. Fisher, Linda Hoglund, Sam A. Keo, and Sarath D. Gunapala "Extended cut-off wavelength nBn detector utilizing InAsSb/InSb digital alloy absorber", Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 1011114 (27 January 2017); https://doi.org/10.1117/12.2251703

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