Properties of two-component nematic liquid crystal mixtures in the range of 0.3-3.0 THz

In this work, we present the results of terahertz measurements of five nematic liquid crystal materials. Optical properties like refractive indices, birefringence and absorption coefficients of liquid crystals (LCs) for ordinary and extraordinary polarisation were compared. The aim of this study was...

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Bibliographic Details
Published in:Liquid crystals 2015-09, Vol.42 (9), p.1243-1249
Main Authors: Chodorow, Urszula, Chojnowska, Olga, Parka, Janusz
Format: Article
Language:English
Subjects:
Atomic properties
Atomic structure
Atoms & subatomic particles
Birefringence
liquid crystal
Liquid crystal polymers
Liquid crystals
Molecular structure
Molecules
Nematic
Optical properties
spectroscopy
terahertz radiation
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Summary:In this work, we present the results of terahertz measurements of five nematic liquid crystal materials. Optical properties like refractive indices, birefringence and absorption coefficients of liquid crystals (LCs) for ordinary and extraordinary polarisation were compared. The aim of this study was to check the impact of the structure of LC molecules on above properties. The compounds with different core structure and various number of laterally substituted fluorine atoms were chosen. A standard terahertz Time-Domain Spectrometer to measurements from 0.3 THz to 3 THz was used.
ISSN:0267-8292
1366-5855
DOI:10.1080/02678292.2015.1036816