Use of an ac heterodyne lateral shear in
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Wyant, J. C.
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Article
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1975
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The Optical Society
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English
⚖ 625 KB
An analysis is performed to determine the accuracy with which an ac heterodyne lateral shear interferometer can measure wavefront aberrations if a white light extended source is used with the interferometer, and shot noise is the predominate noise source. The analysis shows that for uniform circular