Evaluation of a 40- to 125-um Ge:Sb photoconductor array for airborne astronomy

Christopher Mason; Jessie L. Dotson; Christopher T. Koerber; Edwin F. Erickson; Michael R. Haas; Anita Prasad; Fred C. Witteborn; Jam Farhoomand; David Sisson; Jeffrey Beeman

doi:10.1117/12.458644

3 March 2003 Evaluation of a 40- to 125-μm Ge:Sb photoconductor array for airborne astronomy

Christopher Mason, Jessie L. Dotson, Christopher T. Koerber, Edwin F. Erickson, Michael R. Haas, Anita Prasad, Fred C. Witteborn, Jam Farhoomand, David Sisson, Jeffrey Beeman

Author Affiliations +

Proceedings Volume 4857, Airborne Telescope Systems II; (2003) https://doi.org/10.1117/12.458644
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

Testing of a 40 to 125 μm Ge:Sb photoconductor array for AIRES (Airborne Infra-Red Echelle Spectrometer) is described. The prototype array is a 2×24 module which can be close-stacked with other modules to provide larger two-dimensional formats. Collecting cones on a 0.08 inch pitch concentrate incident radiation into integrating cavities containing the detectors. The array is read out by two Raytheon SBRC 190 cryogenic multiplexers that also provide a CTIA (capacitive transimpedance amplifier) unit cell for each detector. We have conducted a series of tests to evaluate the array dark current, responsivity and detective quantum efficiency.

Citation Download Citation

Christopher Mason, Jessie L. Dotson, Christopher T. Koerber, Edwin F. Erickson, Michael R. Haas, Anita Prasad, Fred C. Witteborn, Jam Farhoomand, David Sisson, and Jeffrey Beeman "Evaluation of a 40- to 125-μm Ge:Sb photoconductor array for airborne astronomy", Proc. SPIE 4857, Airborne Telescope Systems II, (3 March 2003); https://doi.org/10.1117/12.458644

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