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Bragg selectivity of space-charge gratings in multidomain lithium niobate crystals
1Institute of Physics, University of Bonn, Bonn, Germany. eggert@physik.uni-bonn.de
Optics Letters
|April 28, 2006
Abstract:
It is shown experimentally and theoretically that a partial domain reversal in ferroelectric lithium niobate crystals containing a previously imprinted photorefractive space-charge grating results in a highly unusual change of the angular Bragg selectivity. This carries important in situ information about domain structures, including the quality of periodically poled samples.
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