Method for Remotely Measuring Fluctuations in the Optical Index of Refraction of a Medium
Patent application, Filed 9 November 2011
NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI
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A method is provided for remotely measuring index of refraction fluctuations. From a first location, an optical beam is focused at a focal plane located at a second location in a medium of interest. As a result, a beam of energy is backscattered towards the first location. At the first location, a size of the backscattered beam is determined where the size is indicative of strength of fluctuations in the mediums index of refraction.