Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Photo-isomerization fronts in dye-doped nematic liquid crystals

Not Accessible

Your library or personal account may give you access

Abstract

An experimental study of the photo-isomerization dynamics in dye-doped nematic crystals is reported, which shows that, when the sample is illuminated by a Gaussian beam, and for high enough input power, a transition from the nematic to the isotropic phase takes place in the illuminated area. The two phases are spatially connected via a front propagating outward from the center of the beam and following the local intensity profile and thus inducing a photo-controlled optical aperture. The optical intensity and temperature fields on the sample follow the same dynamical profile. The front dynamics is described by a phenomenological bi-stable model with an inhomogeneous control parameter, directly related to the beam intensity profile.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Photo-stimulated phase and anchoring transitions of chiral azo-dye doped nematic liquid crystals

Sudarshan Kundu and Shin-Woong Kang
Opt. Express 21(25) 31324-31329 (2013)

Photo- and electro-isomerization of azobenzenes based on polymer-dispersed liquid crystals doped with azobenzenes and their applications

Yen-Chen Liu, Ko-Ting Cheng, Hsin-Fu Chen, and Andy Ying-Guey Fuh
Opt. Express 22(4) 4404-4411 (2014)

Slow and stored light by photo-isomerization induced transparency in dye doped chiral nematics

D. Wei, U. Bortolozzo, J. P. Huignard, and S. Residori
Opt. Express 21(17) 19544-19554 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved