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Status of mid-infrared superlattice technology in Germany

: Rehm, R.; Walther, M.; Schmitz, J.; Rutz, F.; Fleissner, J.; Scheibner, R.; Ziegler, J.


Razeghi, M. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Quantum sensing and nanophotonic devices VI : 25 - 28 January 2009, San Jose, California, USA
Bellingham, WA: SPIE, 2009 (Proceedings of SPIE 7222)
ISBN: 978-0-8194-7468-1
Paper 72220T
Conference "Quantum Sensing and Nanophotonic Devices" <6, 2009, San Jose/Calif.>
Fraunhofer IAF ()
InAs/(GaIn)Sb superlattice; InAs/(GaIn)Sb Übergitter; MWIR; infrared imager; dual-color; Zweifarben; dual-band; Zweiband; quantum efficiency; Quanteneffizienz; carbon dioxide; Kohlendioxid

In Germany, InAs/GaSb superlattice detector technology for the mid-wavelength infrared spectral range has been intensively developed in recent years. Mid-IR InAs/GaSb superlattice photodiodes achieve a very high quantum efficiency. The world's first high-performance infrared imagers based on InAs/GaSb superlattices were realized offering high spatial and excellent thermal resolution at short integration times. Additionally, the technology for dual-color superlattice detectors featuring simultaneous, pixel-registered detection of two separate spectral regimes in the mid-IR has been developed. Due to the ability to detect signatures of hot carbon dioxide, dual-color superlattice detectors are ideally suited for missile alerting sensors. The capability for small volume production of InAs/GaSb superlattice detectors has been established.