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Proceedings Paper

Experimental investigation of critical points in optical coherence function
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Paper Abstract

By using an unconventional holography, referred to as coherence holography, developed recently, we will explore the whole phase field in an optical coherence function and present the direct experimental investigation to the coherence critical points, including coherence phase saddles, coherence phase extrema and coherence phase singularities. We have observed the local phase structures around the coherence critical points, and studied the relationship between the saddles and the extrema in the optical coherence function. Some topological rules associated with the coherence critical points, such as topological sign rule governing the coherence vortices and topological index conservation during the reaction of the coherence vortices, are also investigated by experiments.

Paper Details

Date Published: 2 August 2010
PDF: 7 pages
Proc. SPIE 7782, The Nature of Light: Light in Nature III, 77820A (2 August 2010); doi: 10.1117/12.865077
Show Author Affiliations
Wei Wang, Heriot-Watt Univ. (United Kingdom)
Vasilij Vasil'ev, Institute of Physics (Ukraine)
Marat Soskin, Institute of Physics (Ukraine)
Mitsuo Takeda, The Univ. of Electro-Communications (Japan)

Published in SPIE Proceedings Vol. 7782:
The Nature of Light: Light in Nature III
Katherine Creath; Joseph A. Shaw, Editor(s)

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