Gesualdi, Marcos R. R.Muramatsu, MikiyaBarbosa, Eduardo A. [UNESP]2014-05-202014-05-202008-12-01Optics Communications. Amsterdam: Elsevier B.V., v. 281, n. 23, p. 5739-5744, 2008.0030-4018http://hdl.handle.net/11449/41999The purpose of this work is to study the potentialities of phase-shifting real-time holographic interferometry for the analysis of light-induced lens in photoreffactive and nonlinear optical materials. We show that this technique can be used for quantitative evaluation of the phase distribution of a wavefront changed by a light-induced lens and, consequently, the refractive index changes in these materials. The basic principle of this technique combines real-time holographic interferometry with phase-shifting technique for interferogram analysis. This method is demonstrated with in situ visualization, monitoring and analysis in real-time and uses a Bi(12)SiO(20) crystal as the holographic medium and a Bi(12)TiO(20) as the test sample. (C) 2008 Elsevier B.V. All rights reserved.5739-5744engLight-induced lens effectPhase-shiftingReal-time holographyPhotorefractive crystalsArtigo10.1016/j.optcom.2008.09.012WOS:000261294100017Acesso restrito