Influence of the backward propagating waves on the twist optical Fréedericksz transition in planar nematic films
KRIMER, Dmitry O.
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
KRIMER, Dmitry O.
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
< Reduce
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
Max Planck Institute for the Physics of Complex Systems [MPI-PKS]
Language
en
Article de revue
This item was published in
Liquid Crystals. 2011-02-16, vol. 38, n° 8, p. 1021-1026
Taylor & Francis
English Abstract
We report on the influence of backward propagating waves on the twist optical Fréedericksz transition when a linearly polarised light impinges at normal incidence on a nematic liquid crystal film with planar alignment. We ...Read more >
We report on the influence of backward propagating waves on the twist optical Fréedericksz transition when a linearly polarised light impinges at normal incidence on a nematic liquid crystal film with planar alignment. We show that the reorientation threshold oscillates as a function of the optical thickness of the nematic layer. The amplitude of these oscillations strongly depends on the refractive index changes at the film boundaries and is shown to be related to interferential effects between forward and backward propagating waves that arise from unavoidable dielectric permittivity tensor mismatch and the film boundaries.Read less <
English Keywords
nematic liquid crystals
Fréedericksz transition
orientational transitions
nonlinear optics
Origin
Hal imported