Dual-colour thermal imaging with InAs/GaSb superlattices in mid-wavelength infrared spectral range |
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| Authors: | Rehm R Walther M Schmitz J Fleissner J Ziegler J Cabanski W Breiter R |
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| Affiliation: | Fraunhofer-Inst. fur Angewandte Festkorperphys., Freiburg, Germany; |
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| Abstract: | Based on type-II InAs/GaSb superlattice photodiodes, the first report of a dual-colour infrared camera with excellent NETD values<30 mK for the shortwave channel with a cutoff wavelength of 4.0 /spl mu/m and <17 mK for the longwave channel with 5.0 /spl mu/m cutoff is presented. The bispectral system, which offers a simultaneous and pixel-registered detection of both colours, allows remote imaging of carbon dioxide. |
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