Speckle correlation measurement in a disordered medium observed through second-harmonics generation.

Abstract

We examined speckle correlation in a disordered medium consisting of LiNbO3 corpuscles, by observing the total intensity of the second-harmonics (SH) light generated by angular correlated two excitation beams. The total SH intensity showed a correlation peak at theta approximately 0, where theta was the angle between two excitation beams, and decreased as… (More)

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