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Proceedings Paper

Three-wavelength laser microrefractometer
Author(s): Stefka N. Kasarova; Nina G. Sultanova; Tzveta Petrova; Violeta Dragostinova; Ivan D. Nikolov
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Paper Abstract

A three-wavelength laser microrefractometer has been assembled and standard liquids have been used for calibration of the experimental set-up. Refractive indices of polymer solutions of Polycarbonate, Polyarylate, Polyester, Nylon, Copolyester A and Copolyesters B are measured. Experimental results of the examined samples are obtained at laser wavelengths of 532 nm, 632.8 nm and 790 nm. A standard uncertainty of ± 2×10-4 has been achieved applying gomiometric table with 1-arcmin resolution. Specific refraction of the investigated polymer materials and their solutions are determined. The dispersion coefficients of Sellmeier's and Cauchy's equation are calculated and comparative dispersion curves are illustrated.

Paper Details

Date Published: 19 December 2008
PDF: 6 pages
Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70271O (19 December 2008); doi: 10.1117/12.822538
Show Author Affiliations
Stefka N. Kasarova, Assen Zlatarov Univ. (Bulgaria)
Nina G. Sultanova, Assen Zlatarov Univ. (Bulgaria)
Tzveta Petrova, Central Lab. of Optical Storage and Processing of Information (Bulgaria)
Violeta Dragostinova, Central Lab. of Optical Storage and Processing of Information (Bulgaria)
Ivan D. Nikolov, Sofia Univ. (Bulgaria)


Published in SPIE Proceedings Vol. 7027:
15th International School on Quantum Electronics: Laser Physics and Applications

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