期刊
APPLIED OPTICS
卷 58, 期 4, 页码 1005-1009出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.58.001005
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- Consejo Nacional de Ciencia y Tecnologia (CONACYT) [C-857/2018, 257517, 280181, 293471]
A simple and low-cost method for phase-shifting interferometry by the rotation of a polarizer is presented. This proposal takes advantage of the polarization aberration in a cube beam splitter due to its geometry, to the angular dependence with the coating, and to the polarization angle of the input beam. The interferometric setup performs as a two-window common-path interferometer in which the added phase shifting is achieved by simply rotating a polarizer at the interferometer output. The viability of the proposal is sustained with experimental results in which the phase-shift value and the resulting wavefront are calculated with Farrel's technique and the three-step PSI algorithm, respectively. (C) 2019 Optical Society of America
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