AIP Advances
(Jul 2015)
Refractive indices and birefringence of hybrid liquid crystal - nanoparticles composite materials in the terahertz region
E. Mavrona,
U. Chodorow,
M. E. Barnes,
J. Parka,
N. Palka,
S. Saitzek,
J.-F. Blach,
V. Apostolopoulos,
M. Kaczmarek
Affiliations
E. Mavrona
School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
U. Chodorow
Institute of Applied Physics, Military University of Technology, Warsaw, Poland
M. E. Barnes
School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
J. Parka
Institute of Applied Physics, Military University of Technology, Warsaw, Poland
N. Palka
Institute of Optoelectronics, Military University of Technology, Warsaw, Poland
S. Saitzek
CNRS UMR 8181, Unité de Catalyse et de Chimie du Solide - UCCS, UArtois, Faculté des Sciences Jean Perrin, SP18, F-62307 Lens Cedex, France
J.-F. Blach
CNRS UMR 8181, Unité de Catalyse et de Chimie du Solide - UCCS, UArtois, Faculté des Sciences Jean Perrin, SP18, F-62307 Lens Cedex, France
V. Apostolopoulos
School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
M. Kaczmarek
School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
DOI
https://doi.org/10.1063/1.4927392
Journal volume & issue
Vol. 5,
no. 7
Abstract
Read online
We show that a hybrid LC-ferroelectric nanoparticle suspension of liquid crystal E7 doped with BaTiO3 nanoparticles leads to 10% increase in birefringence in the THz region of spectrum as compared to pure E7. Doped liquid crystals can be used to increase performance of THz modulators and waveplates. BaTiO3 nanoparticles used in the mixture were synthesised with the sol gel technique, and their refractive index has been measured in THz in powder form and in solution.
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