Dual-color InAs/GaSb superlattice infrared imagers

Author

Rehm, Robert ; Walther, Martin ; Rutz, Frank ; Schmitz, Johannes ; Luppold, Wolfgang ; Wauro, Matthias ; Niemasz, Jasmin ; Wörl, Andreas ; Masur, Jan-Michael ; Kirste, Lutz ; Scheibner, Ralf ; Ziegler, Johann

Author_Institution

Fraunhofer-Inst. fur Angewandte Festkorperphys. (IAF), Freiburg, Germany

fYear

2011

fDate

Aug. 28 2011-Sept. 1 2011

Firstpage

1115

Lastpage

1116

Abstract

High-performance dual-color infrared imaging systems have been realized with InAs/GaSb type-II superlattices. The detectors offer a spatial resolution of 288×384 pixels with a simultaneous, co-located detection at 3-4 μm (blue channel) and 4-5 μm (red channel), respectively. Against a 300 K background, a thermal resolution of 18 mK in the blue and 10 mK in the red channel has been achieved. The detectors are well suited for low-false alarm imaging of hot carbon dioxide signatures on a millisecond time scale.

Keywords

III-V semiconductors; gallium compounds; indium compounds; infrared imaging; sensor arrays; spectrochemical analysis; InAs-GaSb; dual color superlattice infrared imagers; hot carbon dioxide signatures; low false alarm imaging; temperature 300 K; type-II superlattice; Cameras; Detectors; Etching; Substrates; Superlattices; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4577-1939-4

Type

conf

DOI

10.1109/IQEC-CLEO.2011.6193884

Filename

6193884