Gesualdi, M. R. R.Barbosa, E. A.Muramatsu, M.2014-05-202014-05-202006-08-01Journal of Optoelectronics and Advanced Materials. Bucharest-magurele: Natl Inst Optoelectronics, v. 8, n. 4, p. 1574-1583, 2006.1454-4164http://hdl.handle.net/11449/37414This work presents a review of recent developments in phase-stepping real-time holographic interferometry with photorefractive sillenite crystals. Quantitative results are shown in micro-rotation, micro-displacement, and micro-deformation measurements, and in wave-optics and surface analysis as well. The phase stepping was carried out in a four-frame process and the resulting phase map was unwrapped by applying a sin/cos filter. The experimental results are in good agreement with the ones obtained through other means, showing the promising potentialities of phase-stepping real-time holographic interferometry for in situ visualisation, monitoring and analysis in non-destructive testing.1574-1583engholographyinterferometryphase shiftingArtigoWOS:000239874400049Acesso restrito