Three-wavelength laser microrefractometer

Stefka N. Kasarova; Nina G. Sultanova; Tzveta Petrova; Violeta Dragostinova; Ivan D. Nikolov

doi:10.1117/12.822538

19 December 2008 Three-wavelength laser microrefractometer

Stefka N. Kasarova, Nina G. Sultanova, Tzveta Petrova, Violeta Dragostinova, Ivan D. Nikolov

Proceedings Volume 7027, 15th International School on Quantum Electronics: Laser Physics and Applications; 70271O (2008) https://doi.org/10.1117/12.822538
Event: 15th International School on Quantum Electronics: Laser Physics and Applications, 2008, Bourgas, Bulgaria

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.

Citation Download Citation

Stefka N. Kasarova, Nina G. Sultanova, Tzveta Petrova, Violeta Dragostinova, and Ivan D. Nikolov "Three-wavelength laser microrefractometer", Proc. SPIE 7027, 15th International School on Quantum Electronics: Laser Physics and Applications, 70271O (19 December 2008); https://doi.org/10.1117/12.822538

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