Study of in-homogeneities in PMMA samples using a 3D-SD-OCT system

Industrial applications of embedded materials have been increased in the recent years as the study of their mechanical properties. A particular interest is their homogeneousness which will determine a significant improvement or decay in the possible application. The optical system proposed here can show the internal micro structure and the internal displacements along a scanned volume through consecutives 2D tomographic and optical phase images. The volumetric information is retrieved by means of a liner stage which avoids the use of expensive tilting devices. Results show the response of homogeneous and in-homogeneous PMMA samples during controlled tests in order to find the simplest one which determines the sample's condition.