Characterization of solid state array cameras for the mid-IR

Details Characterization of solid state array cameras for the mid-IR Characterization of solid state array cameras for the mid-IR

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ijimw..13.1709k&link_type=abstract

International Journal of Infrared and Millimeter Waves (ISSN 0195-9271), vol. 13, no. 11, p. 1709-1725.

Astronomy and Astrophysics

Astronomy

14

Atmospheric Windows, Infrared Astronomy, Infrared Imagery, Solid State Devices, Space Infrared Telescope Facility, Analog To Digital Converters, Black Body Radiation, Emissivity, Laplace Transformation, Photoconductivity, Quantum Efficiency

Scientific paper

We present a characterization of some processes affecting the performance of solid state array cameras designed for ground based astronomical imaging in the 8-13 microns atmospheric window. Our discussion includes a novel model for electron-hole generation-recombination noise based on the probable pathlength of an electron in a photoconductor. We use the Berkeley mid-IR Array Camera as an example. For this camera, the results show that the total optical system composed of the camera, a 3m telescope, and the atmosphere has an efficiency of about 3 percent, a 1sigma noise equivalent flux density of 25 mJy/sq rt min sq arcsec measured over a 10 percent bandwidth, and a noise equivalent expressed as the ambient temperature thermal black body noise of 23 percent.

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