Remote spectroscopy for raman and brillouin scattering
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United States of America Patent
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Nov 16, 1993
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app pub date -
Dec 16, 1992
filing date -
Jun 29, 1990
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Abstract
An apparatus and method for performing Raman and Brillouin spectroscopy remotely. A near-infrared laser is used to irradiate a sample of material to be analyzed. Optical fibers transmit incident radiation from a near-infrared radiation source to the sample, and transmit Raman and Brillouin scattered radiation from the sample to the detecting equipment. The incident radiation is carefully determined so as to avoid fluorescence and to limit optic fiber losses. The invention provides useful information with the use of an interferometer.
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