Simultaneous coherent imaging and strain measurement using coupled photorefractive holography and shearography

摘要

By coupling photorefractive holography with speckle shearography, it is possible to simultaneously perform both coherent imaging and strain measurement. Use of the photorefractive effect, which is insensitive to incoherently scattered light, is a significant advantage in coherent imaging as described. Experimental results obtained from a centrally loaded steel plate are presented. (C) 2008 Optical Society of America.