Temperature effect on nonlinear refractive indices of liquid crystals in visible and NIR
Authors: Abdulkareem L., Abdalah S.F., Al-Naimee K., Meucci R.
Autors Affiliation: Physics Department, College of Science, University of BaghdadBagdad, Iraq; Istituto Nazionale di Ottica – CNR, Largo E. Fermi 6, Firenze, 50125, Italy
Abstract: The effect of temperature variation on nonlinear refractive indices of several types of liquid crystals (LCs) compound has been reported. Birefringence and the temperature gradients of refractive indices of the LCs are determined. Five samples have been investigated; two of them are E7 and MLC 6241-000. The other three have been obtained by mixing the previous two LCs in different proportions. The measurements performed at 632 nm and 1550 nm wavelengths using wedged cell refractometer method. The variation in refractive indices and birefringence were fitted theoretically using the modified Vuks equation. Excellent agreement between the fitted values and experimentally is obtained.
Journal/Review: OPTICS COMMUNICATIONS (PRINT)
Volume: 363 Pages from: 188 to: 194
KeyWords: Birefringence; Liquid crystals; Liquids; Temperature, 1550 nm; Different proportions; Effect of temperature; Extraordinary; Fitted values; Liquid crystals (LCs); Nonlinear refractive index, Refractive indexDOI: 10.1016/j.optcom.2015.11.013Citations: 6data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-08-01References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here