Share Email Print
cover

Proceedings Paper

Type-II superlattice infrared detector technology at Fraunhofer IAF
Author(s): Robert Rehm; Volker Daumer; Tsvetelina Hugger; Norbert Kohn; Wolfgang Luppold; Raphael Müller; Jasmin Niemasz; Johannes Schmidt; Frank Rutz; Tim Stadelmann; Matthias Wauro; Andreas Wörl
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

For more than two decades, Antimony-based type-II superlattice photodetectors for the infrared spectral range between 3-15 μm are under development at the Fraunhofer Institute for Applied Solid State Physics (IAF). Today, Fraunhofer IAF is Germany’s only national foundry for InAs/GaSb type-II superlattice detectors and we cover a wide range of aspects from basic materials research to small series production in this field. We develop single-element photodetectors for sensing systems as well as two-dimensional detector arrays for high-performance imaging and threat warning systems in the mid-wavelength and long-wavelength region of the thermal infrared. We continuously enhance our production capabilities by extending our in-line process control facilities. As a recent example, we present a semiautomatic wafer probe station that has developed into an important tool for electrooptical characterization. A large amount of the basic materials research focuses on the reduction of the dark current by the development of bandgap engineered device designs on the basis of heterojunction concepts. Recently, we have successfully demonstrated Europe’s first LWIR InAs/GaSb type-II superlattice imager with 640x512 pixels with 15 μm pitch. The demonstrator camera already delivers a good image quality and achieves a thermal resolution better than 30 mK.

Paper Details

Date Published: 20 May 2016
PDF: 6 pages
Proc. SPIE 9819, Infrared Technology and Applications XLII, 98190X (20 May 2016); doi: 10.1117/12.2223887
Show Author Affiliations
Robert Rehm, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Volker Daumer, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Tsvetelina Hugger, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Norbert Kohn, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Wolfgang Luppold, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Raphael Müller, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Jasmin Niemasz, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Johannes Schmidt, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Frank Rutz, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Tim Stadelmann, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Matthias Wauro, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Andreas Wörl, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)


Published in SPIE Proceedings Vol. 9819:
Infrared Technology and Applications XLII
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)

© SPIE. Terms of Use
Back to Top