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Generation of partially coherent light in rough surface scattering and suppression of the speckle it produces
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Paper Abstract

We present approaches to the design of two-dimensional randomly rough surfaces that produce scattered fields with specified coherence properties, and transform an incident beam with a specified intensity profile into a scattered beam with a different specified intensity profile. We also show how illuminating a single realization of a randomly rough surface, drawn from an ensemble of such random surfaces, by a partially coherent polychromatic (broadband) beam can be used to replace the average over the ensemble of realizations of the surface used to suppress the speckle produced when the incident field is monochromatic. Finally, we describe an experimental setup for producing a partially coherent beam by an optical feedback technique, and present experimental results demonstrating the reduction of speckle by the use of this beam.

Paper Details

Date Published: 10 September 2007
PDF: 15 pages
Proc. SPIE 6672, Advanced Characterization Techniques for Optics, Semiconductors, and Nanotechnologies III, 66720I (10 September 2007); doi: 10.1117/12.735127
Show Author Affiliations
T. A. Leskova, Univ. of California, Irvine (United States)
A. A. Maradudin, Univ. of California, Irvine (United States)
E. R. Méndez, Ctr. de Investigación Científica y de Educación Superior de Ensenada (Mexico)
Anting Wang, Surface Optics Corp. (United States)
Zu-Han Gu, Surface Optics Corp. (United States)

Published in SPIE Proceedings Vol. 6672:
Advanced Characterization Techniques for Optics, Semiconductors, and Nanotechnologies III
Angela Duparré; Bhanwar Singh; Zu-Han Gu, Editor(s)

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