Anisotropy of near-field speckle patterns

Cheng Liu, Seung Han Park

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In the vicinity of a rough interface under normal illumination the speckle field has been found to be anisotropic; that is, its correlation length is much larger in the direction of polarization than in the perpendicular direction, forming stripe-shaped speckle patterns in the near-field region. Furthermore, with increasing distance from the interface, the anisotropy of the near-field speckles decays rapidly, while the speckle size increases drastically in all directions. Based on detailed analysis, it was found that the anisotropy of the nearfield speckle patterns can be attributed to polarization-dependent coupling among the evanescent waves from different surface diffusers.

Original languageEnglish
Pages (from-to)1602-1604
Number of pages3
JournalOptics Letters
Issue number13
Publication statusPublished - 2005 Jul 1

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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