Interference method for determination of the refractive index and thickness

Serguei A. Alexandrov; Igor V. Chernyh

doi:10.1117/1.1287583

Interference method for determination of the refractive index and thickness

Serguei A. Alexandrov
, Igor V. Chernyh

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

22 Citations (Scopus)

Abstract

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 thicknessmeter (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.

Original language	English
Pages (from-to)	2480-2486
Number of pages	7
Journal	Optical Engineering
Volume	39
Issue number	9
DOIs	https://doi.org/10.1117/1.1287583
Publication status	Published - Sep 2000
Externally published	Yes

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title = "Interference method for determination of the refractive index and thickness",

abstract = "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 thicknessmeter (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.",

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AB - 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 thicknessmeter (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.

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Interference method for determination of the refractive index and thickness

Abstract

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