New method of determination of the Fr eedericksz threshold based upon precise fluctuation measurement

Aude Caussarieu 1 Artyom Petrosyan 1 Sergio Ciliberto 1
1 Phys-ENS - Laboratoire de Physique de l'ENS Lyon
Abstract : In this paper we report a new method for determining the critical threshold of the Fr eedericksz transition driven by an electric field. It is based on the measurement of the amplitude of the molecule fluctuations as a function of the voltage di erence applied to a planar nematic cell. The precise measurement of the director fluctuations of the liquid crystal is made possible by the use of a very precise and sensitive polarization interferometer. The great advantage of the method is that it does not depend on complex ts as it is usually done in literature.
Keywords : Fr eedericksz transition Liquid crystals interferometric techn
Type de document :
Article dans une revue
Applied Physics Letters, American Institute of Physics, 2013, 103 (144109), pp.4
Liste complète des métadonnées

Littérature citée [8 références]  Voir  Masquer  Télécharger
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00852856
Contributeur : Sergio Ciliberto <>
Soumis le : mercredi 21 août 2013 - 15:37:52
Dernière modification le : jeudi 19 avril 2018 - 14:54:03
Document(s) archivé(s) le : jeudi 6 avril 2017 - 03:38:19

Fichiers

threshold_Fredericks.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : ensl-00852856, version 1
  • ARXIV : 1308.4702

Collections

ENS-LYON | UNIV-LYON1

Citation

Aude Caussarieu, Artyom Petrosyan, Sergio Ciliberto. New method of determination of the Fr eedericksz threshold based upon precise fluctuation measurement. Applied Physics Letters, American Institute of Physics, 2013, 103 (144109), pp.4. 〈ensl-00852856〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

137

Téléchargements de fichiers

121

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD