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Optics Letters

Optics Letters

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  • Vol. 30, Iss. 13 — Jul. 1, 2005
  • pp: 1602–1604

Anisotropy of near-field speckle patterns

Cheng Liu and Seung-Han Park  »View Author Affiliations


Optics Letters, Vol. 30, Issue 13, pp. 1602-1604 (2005)
http://dx.doi.org/10.1364/OL.30.001602


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Abstract

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 near-field speckle patterns can be attributed to polarization-dependent coupling among the evanescent waves from different surface diffusers.

© 2005 Optical Society of America

OCIS Codes
(030.0030) Coherence and statistical optics : Coherence and statistical optics

Citation
Cheng Liu and Seung-Han Park, "Anisotropy of near-field speckle patterns," Opt. Lett. 30, 1602-1604 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-13-1602

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