Publication Date:
2019-06-28
Description:
The operating principles of a new kind of room-temperature thermal radiation detector are described. In this device modulated light heats a gas, either directly or by conduction from a thin absorbing membrane, and the resultant change in density of the gas is detected by optical heterodyning. The performance of a membrane device of this kind agrees well with the predictions of theory.
Keywords:
INSTRUMENTATION AND PHOTOGRAPHY
Type:
Infrared Physics (ISSN 0020-0891); 23; 177-182
Format:
text
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