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2014 | OriginalPaper | Buchkapitel
Correction of Errors in Polarization Based Dynamic Phase Shifting Interferometers
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Polarization based interferometers for single snap-shot measurements allow single frame, quantitative phase acquisition for vibration insensitive measurements of optical surfaces and have been successfully used on a variety of interferometer types. This technique generally involves the simultaneous acquisition of three or more images on the same camera or multiple cameras, which are phase shifted by polarization. Examples of these types of systems would include the multiple camera system of Smythe and Moore [1], and more recently, systems utilizing a micro-polarizer phase mask [2] on a single camera.