Abstract

Very high performance (Hg,Cd)Te photoconductive detectors have been fabricated for use on the S-192 experiment, which is a multispectral scanner being built by Honeywell for the NASA Manned Space Center’s Skylab. The S-192 will scan the earth from Skylab and record data in twelve near ir spectral bands and one long wavelength band. The near ir bands range from 0.4 μ to 2.35 μ. At 87 K with a 90° FOV, we have consistently produced arrays with specific detectivities at 2.35 μ close to or greater than 8×1011cmHz12/W and with detective time constants less than 1 μsec. These detectors demonstrate good uniformity in performance across an array. State-of-the-art fabrication techniques have been used to make detectors with good definition that are 5–10 μ thick with 25-μ spacing between elements.

© 1972 Optical Society of America

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