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LASER SPECKLE MOVEMENT CAUSED BY SURFACE DEFORMATION AND LIGHT WAVELENGTHCHANGE[J]. Chinese Journal of Theoretical and Applied Mechanics, 1992, 24(1): 40-47. doi: 10.6052/0459-1879-1992-1-1995-709
Citation: LASER SPECKLE MOVEMENT CAUSED BY SURFACE DEFORMATION AND LIGHT WAVELENGTHCHANGE[J]. Chinese Journal of Theoretical and Applied Mechanics, 1992, 24(1): 40-47. doi: 10.6052/0459-1879-1992-1-1995-709

LASER SPECKLE MOVEMENT CAUSED BY SURFACE DEFORMATION AND LIGHT WAVELENGTHCHANGE

doi: 10.6052/0459-1879-1992-1-1995-709
  • Publish Date: 1992-01-25
  • When a surface is illuminated by laser, the field of diffusing reflectivelight can be described by Fresnel-Kirchhoff integration in the region of Fersnel. If the correlation, before and after the change of intensity field, is analysed by statistical method, three governing equations for variance of intensity field and speckle movement formula can be obtained. In these equations.the surface motion, deformation and wavelength change are all considered to cause the speckle movement.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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