Sensor array based on photoconductance monitoring for optical vibration detection

Details Sensor array based on photoconductance monitoring for optical vibration detection Sensor array based on photoconductance monitoring for optical vibration detection

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5353..126h&link_type=abstract

Semiconductor Photodetectors. Edited by Linden, Kurt J.; Dereniak, Eustace L. Proceedings of the SPIE, Volume 5353, pp. 126-

Physics

Scientific paper

We provide the theory of operation of a recently proposed sensor array. The sensor is designed to detect changes in incident optical intensity that result when a non-uniform intensity distribution on the sensor is displaces laterally. This property allows the device to be used for optical vibration detection. The sensor is based on four-point measurements of photoconductance, which makes the device scalable and easy to fabricate. Some preliminary experimental results obtained with a prototype are given.

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