Photoluminescence study of long wavelength superlattice infrared detectors

Linda Hoglund; Arezou Khoshakhlagh; Alexander Soibel; David Z. Ting; Cory J. Hill; Sam Keo; Sarath D. Gunapala

doi:10.1117/12.894294

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16 September 2011 Photoluminescence study of long wavelength superlattice infrared detectors

Linda Hoglund, Arezou Khoshakhlagh, Alexander Soibel, David Z. Ting, Cory J. Hill, Sam Keo, Sarath D. Gunapala

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Proceedings Volume 8155, Infrared Sensors, Devices, and Applications; and Single Photon Imaging II; 81550M (2011) https://doi.org/10.1117/12.894294
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

In this paper, the relation between the photoluminescence (PL) intensity and the PL peak wavelength was studied. A linear decrease of the PL intensity with increasing cut-off wavelength of long wavelength infrared CBIRDs was observed at 77 K and the trend remained unchanged in the temperature range 10 - 77 K. This relation between the PL intensity and the peak wavelength can be favorably used for comparison of the optical quality of samples with different PL peak wavelengths. A strong increase of the width of the PL spectrum in the studied temperature interval was observed, which was attributed to thermal broadening.

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Linda Hoglund, Arezou Khoshakhlagh, Alexander Soibel, David Z. Ting, Cory J. Hill, Sam Keo, and Sarath D. Gunapala "Photoluminescence study of long wavelength superlattice infrared detectors", Proc. SPIE 8155, Infrared Sensors, Devices, and Applications; and Single Photon Imaging II, 81550M (16 September 2011); https://doi.org/10.1117/12.894294

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