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15 June 2015Edge enhancement of phase objects using a cyclic-path polarization interferometer
The aim of this study is to model edge enhancement effect in purely phase samples. A self compensating interferometer
similar to Sagnac’s, employed with a polarizing beam splitter where two counter propagating orthogonally polarized
mutually coherent beams are modulated by the phase shifts introduced by a phase sample. An afocal imaging system is
used to image the phase sample on the CCD so that one of the images is slightly defocused. Real-time subtraction of two
images results in intensity modulation of phase interfaces.
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Sonali Chakraborty, K. Bhattacharya, "Edge enhancement of phase objects using a cyclic-path polarization interferometer," Proc. SPIE 9654, International Conference on Optics and Photonics 2015, 96540N (15 June 2015); https://doi.org/10.1117/12.2181619