Abstract
THE accompanying photographs illustrate a high-precision interference procedure which has been developed for the examination of the contours of the surface figure on the surfaces of crystals. The method employed is an adaptation of Fabry and Perot's modification (made in 1897) of Fizeau's standard method for examining the perfection of optical flats with localized fringes. It is essentially a multiple beam interference procedure, depending for its precision on the employment of many interfering beams, and is easiest to apply to reasonably large crystalline surfaces which are moderately plane.
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TOLANSKY, S. An Interferometric Procedure for the Examination of Crystal Surfaces. Nature 152, 722–723 (1943). https://doi.org/10.1038/152722a0
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DOI: https://doi.org/10.1038/152722a0
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