Statistics of Dynamic Speckles Produced by a Moving Diffuser under the Gaussian Beam Laser Illumination

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概要

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• Statistical behaviors of temporally fluctuating speckles produced by a moving diffuser are studied in connection with the statistical parameters of the rough surface. In the time domain, the second-order correlation of the light amplitude in the diffraction field is calculated in a general form and, then, applied for the gaussian beam illumination. The intensity correlation is also investigated by assuming that the amplitude variation of the diffraction field follows a gaussian random process. The results analyzed theoretically and confirmed experimentally show that the averaged intensity strongly depends on the surface roughness and that the correlation length of intensity fluctuations in a temporal sense is independent of it.

• 社団法人応用物理学会の論文
• 1974-12-05

著者

• Takai Nobukatsu

  Department Of Applied Physics Faculty Of Engineering Hokkaido University

関連論文

• Talbot Images of Two-Dimensional Gaussian Beam Arrays with Amplitude Fluctuation
• Talbot Images of an Array Source with Correlated Phase Fluctuation Using the Propagation Law of a Gaussian Beam
• Statistics of Dynamic Speckles Produced by a Moving Diffuser under the Gaussian Beam Laser Illumination

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