Abstract

Changes in the spectrum of light scattered by spatially random media are investigated theoretically within the accuracy of the first-order Rytov approximation. Such a phenomenon is analogous to that treated in recent studies on the correlation-induced spectral changes that are often referred to as the Wolf effect. In particular, the effects of multiple scattering on the spectrum of the scattered light are elucidated from comparison with the corresponding results derived previously under the first-order Born approximation. As a result, it is observed that the magnitude of the changes in the spectrum is enhanced in the forward-scattering directions owing to the effects of multiple scattering.

© 1995 Optical Society of America

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