Journal
APPLIED OPTICS
Volume 51, Issue 6, Pages 720-725Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.51.000720
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- Inha University
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We propose a simple white-light interferometric method of measuring a one-dimensional rotation angle with use of an optical plane parallel plate of standard refractive index. The phase change of the interference pattern of the interferometer during the rotation of the flat plate of known refractive index and thickness placed in one of the interferometer's arms is used for determination of the rotation angle. This method has been demonstrated for an accurate angle measurement over the angle range from 0 degrees to 40 degrees within a maximum uncertainty of 0.057 degrees. (C) 2012 Optical Society of America
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