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Proceedings Paper

Optical studies on antimonide superlattice infrared detector material
Author(s): Linda Hoglund; Alexander Soibel; Cory J. Hill; David Z. Ting; Arezou Khoshakhlagh; Anna Liao; Sam Keo; Michael C. Lee; Jean Nguyen; Jason M. Mumolo; Sarath D. Gunapala
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Paper Abstract

In this study the material quality and optical properties of type II InAs/GaSb superlattices are investigated using transmission and photoluminescence (PL) spectroscopy. The influence of the material quality on the intensity of the luminescence and on the electrical properties of the detectors is studied and a good correlation between the photodetector current-voltage (IV) characteristics and the PL intensity is observed. Studies of the temperature dependence of the PL reveal that Shockley-Read-Hall processes are limiting the minority carrier lifetime in both the mid-IR wavelength and the long-IR wavelength detector material studied. These results demonstrate that PL spectroscopy is a valuable tool for optimization of infrared detectors.

Paper Details

Date Published: 26 August 2010
PDF: 7 pages
Proc. SPIE 7780, Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon, 77800D (26 August 2010); doi: 10.1117/12.866082
Show Author Affiliations
Linda Hoglund, Jet Propulsion Lab. (United States)
Alexander Soibel, Jet Propulsion Lab. (United States)
Cory J. Hill, Jet Propulsion Lab. (United States)
David Z. Ting, Jet Propulsion Lab. (United States)
Arezou Khoshakhlagh, Jet Propulsion Lab. (United States)
Anna Liao, Jet Propulsion Lab. (United States)
Sam Keo, Jet Propulsion Lab. (United States)
Michael C. Lee, Jet Propulsion Lab. (United States)
Jean Nguyen, Jet Propulsion Lab. (United States)
Jason M. Mumolo, Jet Propulsion Lab. (United States)
Sarath D. Gunapala, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 7780:
Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon
Eustace L. Dereniak; Randolph E. Longshore; Manijeh Razeghi; John P. Hartke; Ashok K. Sood; Paul D. LeVan, Editor(s)

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