Optical tomography of phase objects with parallel projection differences and ESPI

Cruz Meneses-Fabian; Gustavo Rodriguez-Zurita; Jose F. Vazquez-Castillo

doi:10.1117/12.523998

19 November 2003 Optical tomography of phase objects with parallel projection differences and ESPI

Cruz Meneses-Fabian, Gustavo Rodriguez-Zurita, Jose F. Vazquez-Castillo

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.523998
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

An experimental tomographic set-up whose intention is to render phase-distributions slices of transparent objects is presented. It consists of a Mach-Zehnder interferometer and an ESPI system. In one of the interferometer arms, the object under study is placed on a rotatable stage driven by a stepping motor controlled by a PC-computer. Adjacent parallel projections at angles separated by a small amount are used to extract their corresponding phase difference. Well-known reconstruction procedures are used to render an image, which can be related to the angular derivative of the slice. This image enhances the borders of the object's phase distribution. Simulations and preliminary experimental results are shown.

Citation Download Citation

Cruz Meneses-Fabian, Gustavo Rodriguez-Zurita, and Jose F. Vazquez-Castillo "Optical tomography of phase objects with parallel projection differences and ESPI", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.523998

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