LASER SPECKLE MOVEMENT CAUSED BY SURFACE DEFORMATION AND LIGHT WAVELENGTHCHANGE

doi:10.6052/0459-1879-1992-1-1995-709

Article Contents

Article Navigation > Chinese Journal of Theoretical and Applied Mechanics > 1992 > 24(1): 40-47

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[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

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LASER SPECKLE MOVEMENT CAUSED BY SURFACE DEFORMATION AND LIGHT WAVELENGTHCHANGE

doi: 10.6052/0459-1879-1992-1-1995-709

中国科学技术大学近代力学系

Publish Date: 1992-01-25

Abstract

Abstract

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.
- laser speckle,
- speckle interferometry,
- speckle metrology