Improved Schottky Array Performance With Lenticulated Faceplate

Gary D. Wiemokly; Edward F. Cross; Irving J. Spiro

doi:10.1117/12.950667

23 February 1985 Improved Schottky Array Performance With Lenticulated Faceplate

Gary D. Wiemokly, Edward F. Cross, Irving J. Spiro

Proceedings Volume 0572, Infrared Technology XI; (1985) https://doi.org/10.1117/12.950667
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

Laboratory evaluation is provided of the improved focal plane array performance realized with a novel optical technique that increases the fill factor of Schottky IRCCD mosaics. Specifically, a lenticulated silicon faceplate is installed on the IRCCD chip to redirect focused image irradiance away from nonsensitive areas in the focal plane and to the infrared-sensitive elements. A technique has been developed for successfully fabricating these optical faceplates with the necessary geometrical requirements. The performance data contained herein were obtained with an RCA-supplied 32 x 63 Schottky IRCCD mosaic having a lenticulated faceplate installed on a portion of the array surface. The adjacent dual construction allowed sensitivity and resolution differences to be easily evaluated under identical operating conditions. The enhanced performance was determined experimentally and then compared to predicted fill-factor improvement.

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Gary D. Wiemokly, Edward F. Cross, and Irving J. Spiro "Improved Schottky Array Performance With Lenticulated Faceplate", Proc. SPIE 0572, Infrared Technology XI, (23 February 1985); https://doi.org/10.1117/12.950667

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KEYWORDS

Sensors

Charge-coupled devices

Video

CCD image sensors

Silicon

Contrast transfer function

Infrared technology

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