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.
© 2006 Optical Society of America
Original Manuscript: November 22, 2005
Revised Manuscript: January 31, 2006
Manuscript Accepted: January 31, 2006
H. A. Eggert, F. Kalkum, K. Buse, and B. Sturman, "Bragg selectivity of space-charge gratings in multidomain lithium niobate crystals," Opt. Lett. 31, 1256-1258 (2006)