Bispectral thermal imaging with quantum-well infrared photodetectors and InAs/GaSb type-II superlattices

Robert Rehm; Martin Walther; Joachim Fleißner; Johannes Schmitz; Johann Ziegler; Wolfgang Cabanski; Rainer Breiter

doi:10.1117/12.667627

17 May 2006 Bispectral thermal imaging with quantum-well infrared photodetectors and InAs/GaSb type-II superlattices

Robert Rehm, Martin Walther, Joachim Fleißner, Johannes Schmitz, Johann Ziegler, Wolfgang Cabanski, Rainer Breiter

Proceedings Volume 6206, Infrared Technology and Applications XXXII; 62060Y (2006) https://doi.org/10.1117/12.667627
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

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 288×384 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.

Citation Download Citation

Robert Rehm, Martin Walther, Joachim Fleißner, Johannes Schmitz, Johann Ziegler, Wolfgang Cabanski, and Rainer Breiter "Bispectral thermal imaging with quantum-well infrared photodetectors and InAs/GaSb type-II superlattices", Proc. SPIE 6206, Infrared Technology and Applications XXXII, 62060Y (17 May 2006); https://doi.org/10.1117/12.667627

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