Significant increases (×10) in both speed and gain of the beam fanning process were obtained via three different methods in SBN and BSKNN. These methods involve the creation of a dc electric field either (1) externally, (2) by the pyroelectric effect, or (3) by thermally cycling the crystal and the presence of laser radiation. The enhanced effects were observed for both ordinary and extraordinary polarized light.
© 1990 Optical Society of America
William W. Clark III, Gary L. Wood, Mary J. Miller, Edward J. Sharp, Gregory J. Salamo, Brian Monson, and Ratnakar R. Neurgaonkar, "Enhanced photorefractive beam fanning due to internal and external electric fields," Appl. Opt. 29, 1249-1258 (1990)