Abstract

The zero time-delay degree of second-order coherence g⁽²⁾(0) is investigated in the laser speckle field backscattered from a continuously rotating randomly rough aluminum metal surface. The s-polarized laser beam is incident with an angle of −30° to the surface, and the angular distributions of the mean intensity and g⁽²⁾(0) are measured in the incidence plane. In obtaining g⁽²⁾(0) from the experimental data, the contribution of shot noise is subtracted from the photoelectric signal. It is found that the s and p components of the scattered light are close to those of the Gaussian light and that the measured g⁽²⁾(0) is consistent with the theoretical value.

© 1992 Optical Society of America

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