ACTA

Physical and Technical Aspects of Measurements of Ordinary and Extraordinary Refraction Indices and Birefringence of Nematic Liquid Crystals

J. Kędzierski^a, M.A. Kojdecki^b, K. Kowiorski^c, Z. Raszewski^a, E. Miszczyk^d
^aInstitute of Applied Physics, Military University of Technology, Warsaw, Poland
^bInstitute of Mathematics and Cryptology, Military University of Technology, Warsaw, Poland
^cInstitute of Electronic Materials Technology, Department of Chemical Technologies, Warsaw, Poland
^dInstitute of Physics, University of Technology and Humanities, Radom, Poland

Received: April 1, 2019; revised version April 23, 2019; in final form April 27, 2019

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This article is a survey of techniques for experimental determination of ordinary and extraordinary refractive indices and birefringence of uniaxial liquid crystals. The ideas of methods are briefly described with basic references added.

DOI:10.12693/APhysPolA.136.196
topics: liquid crystals, refractive indices of liquid crystals, wedge cell, birefringence, interference, measurements of refractive indices