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Proceedings Paper

An Interferometric Thermal Detector
Author(s): Steven E. Hodges; Mark T. Kern; Kwangjai Park
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Paper Abstract

A novel infrared detection system is presented. A responsivity of 35 fringes per Watt and a time constant of approximately 220 milliseconds were measured at room temperature for a fiber optic interferometric thermal detector (ITD). These mea-surements compare well with predictions based on a thermal model of the sensor. Except for microphonics, the device was noiseless to the limit of measurement; a room temperature D* of about 7X108 centimeter - root Hertz per Watt is predicted by the model. Finally, the performance of alternate ITD designs is discussed.

Paper Details

Date Published: 11 October 1989
PDF: 12 pages
Proc. SPIE 1107, Infrared Detectors, Focal Plane Arrays, and Imaging Sensors, (11 October 1989); doi: 10.1117/12.960661
Show Author Affiliations
Steven E. Hodges, Santa Barbara Research Center (United States)
Mark T. Kern, Santa Barbara Research Center (United States)
Kwangjai Park, University of Oregon (United States)


Published in SPIE Proceedings Vol. 1107:
Infrared Detectors, Focal Plane Arrays, and Imaging Sensors
Eustace L. Dereniak; Robert E. Sampson, Editor(s)

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