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Proceedings Paper

Dark Rings From Photorefractive Conical Diffraction In A BaTiO[sub]3[/sub] Crystal
Author(s): Tallis Y. Chang; Pochi Yeh
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Paper Abstract

A portion of photorefractively fanned light, in the shape of a ring, is absent (i.e., appears as a dark ring) when two laser beams of extraordinary polarization are transmitted through a BaTiO3 crystal. These dark rings are due to two sets of index gratings destructively interfering to eliminate part of the fanning hologram. Bragg phase-matching conditions determine the shape and size of dark rings.

Paper Details

Date Published: 22 April 1988
PDF: 9 pages
Proc. SPIE 0739, Phase Conjugation, Beam Combining, and Diagnostics, (22 April 1988); doi: 10.1117/12.939711
Show Author Affiliations
Tallis Y. Chang, Rockwell International Science Center (United States)
Pochi Yeh, Rockwell International Science Center (United States)

Published in SPIE Proceedings Vol. 0739:
Phase Conjugation, Beam Combining, and Diagnostics
Ira Abramowitz; Robert A. Fisher, Editor(s)

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