We present a Sagnac interferometer for the analysis of red blood cells. The optical system generates two π/2-shifted interferograms; due to its configuration, it is immune to vibrations caused by environmental perturbations because the reference wavefront and the object wavefront have a cyclic path. The analysis of two patterns with shifts of π/2 captured in one shot is presented. The optical phase was processed using a Vargas-Quiroga algorithm. Related experimental results obtained for Red Blood Cells are presented.

© 2016 Optical Society of America

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