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Updated: Jun 14, 2026
16:11
Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
Abstract:
An analysis is made of an infrared chopper based on the refraction of light rays by a low frequency (~l-MHz) standing acoustic wave in a block of material such as germanium. Computer programs are described for tracing the rays through the acoustic field and for calculating the contrast ratio at a small aperture detector following the chopper. Experimental results obtained with a germanium device are in good agreement with the theory.
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