NASA NTRS · 20020028885
Phase-Shifting Shearing Interferometer
Abstract
A single-element phase-shifting interferometer has been developed based on the lateral shearing interferometer. This new interferometer requires no precise alignment, and the phase is continuously varied by changes in the voltage across a commercially available liquid-crystal phase retarder.
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Griffin, DeVon W.. 2001-02-01. Phase-Shifting Shearing Interferometer. https://ntrs.nasa.gov/citations/20020028885
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