ANOMALOUS WAVELENGTH DEPENDENCE OF THE DYE-INDUCED OPTICAL REORIENTATION IN NEMATIC LIQUID-CRYSTALS

Authors
KOSA T JANOSSY I
Citation
T. Kosa et I. Janossy, ANOMALOUS WAVELENGTH DEPENDENCE OF THE DYE-INDUCED OPTICAL REORIENTATION IN NEMATIC LIQUID-CRYSTALS, Optics letters, 20(11), 1995, pp. 1230-1232
Citations number
9
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
20
Issue
11
Year of publication
1995
Pages
1230 - 1232
Database
ISI
SICI code
0146-9592(1995)20:11<1230:AWDOTD>2.0.ZU;2-C
Abstract
We report on Z-scan measurements of the spectral dependence of dye-ind uced enhancement of optical torque in nematic liquid crystals. It is f ound that the enhancement factor changes sign from positive to negativ e as photon energy increases hom 2.4 to 2.7 eV. Modification of our ea rlier model is proposed to describe the observed spectral dependence.