Low-cost 256 X 256 PtSi infrared array for astronomical applications

Details Low-cost 256 X 256 PtSi infrared array for astronomical applications Low-cost 256 X 256 PtSi infrared array for astronomical applications

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1685...64f&link_type=abstract

Proc. SPIE Vol. 1685, p. 64-71, Infrared Detectors and Focal Plane Arrays II, Eustace L. Dereniak; Robert E. Sampson; Eds.

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The development of a Platinum Silicide (PtSi) array for use in ground-based astronomy has been the goal of a joint effort between the National Optical Astronomy Observatories (NOAO) and the Hughes Technology Center (HTC). This has been accomplished by the introduction of the SWIR PtSi hybrid array for astronomy. The resulting array has an optical cavity tuned to enhance the internal quantum efficiency at 1.7 microns and the use of hybrid technology produces an array with near 100% effective fill factor. Dark currents are much less than 10 electrons sec(superscript -1) and the read noise is 55 - 60 e rms. Although the quantum efficiency is not as high as the exotic materials, the high uniformity, stability, and low cost make this an array worth considering for many astronomy applications.

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