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Interferometric method to measure and test the optical homogeneity of transparent materials

✍ Scribed by Daniil T. Puryayev

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 217 KB
Volume: 30
Category: Article
ISSN: 0030-3992
DOI: 10.1016/s0030-3992(98)00043-7

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✦ Synopsis

The main idea of the method is to eliminate physically the in¯uence of errors of glass sample plane surfaces on the wavefront transmitting through the sample. This makes it possible to reveal the ``pure'' optical inhomogeneity of the material independently of the errors of ¯at surfaces of a glass sample made in the form of a plane-parallel plate or a wedge of the small refractive angle. A basic optical layout of the laser interferometer explaining the capabilities of the practical application of the method is presented.

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