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2006
Conference Paper
Titel
Bispectral thermal imaging with quantum-well infrared photodetectors and InAs/GaSb type-II superlattices
Alternative
Bispektrale Thermographie mit Quantenfilm-Infrarotdetektoren und InAs/GaSb Typ-II Übergittern
Abstract
We report on bispectral imaging systems based on quantum-well infrared photodetectors (QWIPs) and InAs/GaSb type-II superlattices (SLs) for the mid-wavelength infrared spectral range between 3-5 µm (MW) and the longwavelength infrared regime at 8-12 µm (LW). A dual-band MW/LW QWIP imager and a dual-color MW/MW InAs/GaSb SL camera are demonstrated. The two systems offer a spatial resolution of 288x384 pixels and a simultaneous detection of both channels on each pixel. Both technologies achieve an excellent noise equivalent temperature difference below 30 mK in each channel with F#/2.0 optics.
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