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Abstract

Temperature and concentration dependence of refractive index of cholesteric liquid crystal solution

Author(s): Anita Kanwar, Priya S.Yadav

Average refractive indices of Cholesteric liquid crystal (Cholesteryl pelargonate: CP) dissolved in a soluble solvent were measured at various temperatures and concentrations. Multi-wavelength (visible range) refractometer made using hollow prism is used in the measurement. Due to variation in extra-ordinary and ordinary refractive index average refractive index changes with temperature for various concentrations of the solution. The changes in average refractive index were investigated for three wavelengths: 404 nm, 546 nm and 578 nm. Results so obtained are presented in this paper and are in accordance with claimbyHecht in his book.


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