Single-frame double-grating interferometry with two inherent-phase-shifted interferograms.
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DOI: 10.1364/oe.521731
Abstract: In this work, we introduce a novel self-referencing, common-path, double-grating interferometry method for studying slowly varying phase samples. Two plane wave diffraction orders of the gratings, namely (0,+1) and (+1,0), with a certain phase difference,… read more here.
Keywords: grating interferometry; double grating; sample; sample phase ... See more keywords