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New Type of Interference Fringes

Abstract

IF a pair of optically flat plates, making a wedge angle of a few seconds, be placed in the beam from a collimator with a cross slit (to obtain effectively a point source) and the eye be placed at the focal plane of the telescope objective (without eyepiece), straight fringes are seen which are localised at the plates. Essentially they are the fringes observed by Fizeau, who used a back reflection method.

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WILLIAMS, W. New Type of Interference Fringes. Nature 122, 347–348 (1928). https://doi.org/10.1038/122347b0

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  • DOI: https://doi.org/10.1038/122347b0

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