Journal of Atomic, Molecular, and Optical Physics
Volume 2012 (2012), Article ID 689831, 6 pages
Research Article

Experimental Verification of Vuks Equation Using Hollow Prism Refractometer

1Department of Physics, VES College of Arts, Science and Commerce, Sindhi Society, Chembur, Maharashtra, Mumbai 400071, India
2Department of Physics, Atharva Engineering College, Malad West, Maharashtra, Mumbai 400095, India

Received 31 July 2012; Revised 2 November 2012; Accepted 2 November 2012

Academic Editor: Boris A. Malomed

Copyright © 2012 Anita Kanwar and Priya S. Yadav. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The refractive indices of the cholesteric liquid crystal solution were measured using multiwavelength (visible range) refractometer for three different wavelengths. Measurements were made at different temperatures for various concentrations of the solution, mixing CLC in a soluble solvent. Vuks equation describes the wavelength and temperature dependence of refractive indices of anisotropic crystalline materials. We have used a simplified version of Vuks equation relating only to macroscopic indices and verified its validity for five-different-concentration solution at various temperatures. The result is also used to obtain molecular polarizabilities and temperature dependent material constants of our sample.