Published 2004 | Version v1
Conference paper Metadata-only

Surfactant-controlled light-induced reorientation in dye-doped nematic liquid crystals

Residori, Stefania
Petrosyan, Artyom
Others:
Institut Non Linéaire de Nice Sophia-Antipolis (INLN) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire de Physique de l'ENS Lyon (Phys-ENS) ; École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Paul L. Heremans
Michele Muccini
Hans Hofstraat

Description

We show that a very large optical response is obtained in azo-dyedoped nematic liquid crystals for low input light intensities (of the order of a few tens of µW/cm2 and that this extreme sensitivity of the nematic film results from a combined action of the photoisomerization process of the azo-dye molecules and the light-induced changes of the anchoring energy. The liquid crystal reorientation can be controlled by changing the molecular length of the ionic surfactant which is used as anchoring agent.

Additional details

Identifiers Origin repository
Created:
December 4, 2022
Modified:
November 30, 2023