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Proceedings Paper

InGaAs infrared detector development for SWIR imaging applications
Author(s): F. Rutz; P. Kleinow; R. Aidam; W. Bronner; L. Kirste; M. Walther
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Paper Abstract

We report on materials and technology development for short-wave infrared photodetectors based on InGaAs p-i-n and avalanche photodiodes (APDs). Using molecular beam epitaxy for the growth of thin layers with abrupt interfaces, which are required for optimized APD structures, excellent crystalline quality has been achieved for detector structures grown on 3-inch InP substrates. For the fabrication of focal plane detector arrays, we employed a mesa etching technology in order to compare the results with the commonly utilized planar technology. Camera detector arrays as well as test structures with various sizes and geometries for materials and process characterization are processed using a dry-etch mesa technology. Aspects of the process development are presented along with measured dark-current and photo-current characteristics of the detector devices.

Paper Details

Date Published: 25 October 2013
PDF: 7 pages
Proc. SPIE 8896, Electro-Optical and Infrared Systems: Technology and Applications X, 88960C (25 October 2013); doi: 10.1117/12.2026879
Show Author Affiliations
F. Rutz, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
P. Kleinow, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
R. Aidam, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
W. Bronner, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
L. Kirste, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
M. Walther, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)


Published in SPIE Proceedings Vol. 8896:
Electro-Optical and Infrared Systems: Technology and Applications X
David A. Huckridge; Reinhard Ebert, Editor(s)

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