1 September 2000 Interference method for determination of the refractive index and thickness
Serguei A. Alexandrov, Igor V. Chernyh
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The interference method for simultaneous measurement of the absolute refractive index and the thickness of plane parallel samples is developed. This method enables us to test solid (including optical glasses, crystals, plastics, and other sheet materials), liquid, and gaseous media over a wide spectral range. The experimental model for the realization of this method, the laser interference refractometer and thick- nessmeter (IRT), is manufactured and investigated. The IRT accuracy of the refractive index measurement is not worse than that of the best modern goniometers and the accuracy of the thickness measurement corresponds to the interference accuracy.
Serguei A. Alexandrov and Igor V. Chernyh "Interference method for determination of the refractive index and thickness," Optical Engineering 39(9), (1 September 2000). https://doi.org/10.1117/1.1287583
Published: 1 September 2000
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Cited by 20 scholarly publications.
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KEYWORDS
Refractive index

Error analysis

Interferometers

Liquids

Mathematical modeling

Data modeling

Mirrors

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