Sensitive mid- and far-infrared lead telluride-based photodetectors

Dmitriy R. Khokhlov

doi:10.1117/12.317630

22 July 1998 Sensitive mid- and far-infrared lead telluride-based photodetectors

Dmitriy R. Khokhlov

Proceedings Volume 3379, Infrared Detectors and Focal Plane Arrays V; (1998) https://doi.org/10.1117/12.317630
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

Doping of the lead telluride and related alloys with the group III impurities results in an appearance of the unique physical features of a material, such as persistent photoresponse, enhanced responsive quantum efficiency (up to 100 photoelectrons/incident photon), radiation hardness and many others. We review the physical principles of operation of the photodetecting devices based on the group III-doped IV-VI including the possibilities of a fast quenching of the persistent photoresponse, construction of the focal-plane array, new readout technique, and others. The advantages of infrared photodetecting systems based on the group III-doped IV-VI in comparison with the modern photodetectors are summarized. Some new ideas concerning the possibilities provided by the doped IV-VI are presented.

Citation Download Citation

Dmitriy R. Khokhlov "Sensitive mid- and far-infrared lead telluride-based photodetectors", Proc. SPIE 3379, Infrared Detectors and Focal Plane Arrays V, (22 July 1998); https://doi.org/10.1117/12.317630

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