Statistical Properties of Laser Speckles Generated from Far Rough Surfaces

  • Guanjun Guo
  • Shukai Li
  • Qulin Tan
Article

Abstract

The statistical properties of speckle patterns generated from far rough surfaces, under illumination of a Gaussian beam, are investigated. The surface roughness dependence of the first- and second-order moments of intensity is theoretically investigated, and their analytical expressions have been derived and presented. The analysis indicates that the mean intensity distribution on the receiver plane is closely related to the ratio of the lateral correlation length to the surface root mean square (rms) height. On the other hand, the speckle size and the correlation degree of the speckle intensities are found to be independent of the parameter characterizing the roughness of a surface, and are only determined by the laser beam waist.

Correlation function Intensity Laser speckle Roughness 

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Copyright information

© Plenum Publishing Corporation 2001

Authors and Affiliations

  • Guanjun Guo
    • 1
  • Shukai Li
    • 1
  • Qulin Tan
    • 1
  1. 1.Laboratory of Remote Sensing Information Sciences, Institue of Remote Sensing ApplicationsChinese Academy of SciencesBeijingPeople's Republic of China

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