Hidden surface photorefractive gratings in a nematic-liquid crystal cell in the absence of a deposited alignment layer
JOSA B, Vol. 23, Issue 6, pp. 1007-1011 (2006)
http://dx.doi.org/10.1364/JOSAB.23.001007
Enhanced HTML 
Acrobat PDF (79 KB)
Abstract
We have carried out studies of photoinduced diffraction in a homeotropically aligned liquid-crystal cell on indium tin oxide with no alignment layer deposited between the electrodes and the liquid crystal. We have observed diffractive components from both persistent hidden gratings and transient gratings formed in the presence of a dc electric field and two coherent pump beams. Our experiments suggest that these persistent hidden gratings are due to a light-induced modulation of the surface charge of adsorbed species that is hidden by diffusion of bulk charge to screen the surface charge in the absence of an applied field. The applied field removes the screening charge, revealing the hidden surface-bound charge modulation. This persistent hidden grating can be manipulated by the application of light and/or a dc electric field. Dynamics and other properties are studied and described.
© 2006 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(190.5330) Nonlinear optics : Photorefractive optics
(240.6670) Optics at surfaces : Surface photochemistry
ToC Category:
Diffraction and Gratings
History
Original Manuscript: September 1, 2005
Revised Manuscript: December 23, 2005
Manuscript Accepted: January 6, 2006
Citation
Platon P. Korneychuk, Oleksandr G. Tereshchenko, Yuriy A. Reznikov, Victor Yu. Reshetnyak, and Kenneth D. Singer, "Hidden surface photorefractive gratings in a nematic-liquid crystal cell in the absence of a deposited alignment layer," J. Opt. Soc. Am. B 23, 1007-1011 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-6-1007
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Electrically controlled surface diffraction gratings in nematic liquid crystals (OL)
- Surface-activated photorefractivity and electro-optic phenomena in liquid crystals (JOSAB)
- Tunable single-mode operation of a high-power laser-diode array by use of an external cavity with a grating and a photorefractive phase-conjugate mirror (JOSAB)
- Optical two-beam coupling for a surface-induced photorefractive effect in undoped liquid crystals (OL)
- Dynamic grating features for the surface-induced photorefractive effect in undoped nematics (JOSAB)
Related Conference Papers
- All-optical photorefractive switch with phase difference between control beams
- Formation of High Efficiency, Low Noise Orientational Grating in Nematic Liquid Crystal Cells under Applied AC Electric Field
- Photorefractive Effect in Cubic Crystals under a Revolving Electric Field
- Influence of the Spatial Non-Uniformity of the Grating on the Beam Energy Exchange of Thick Sillenite Crystals
- Fully Updatable Three-dimensional Holographic Display Device Using a Monolithic Compound
« Previous Article | Next Article »
OSA is a member of 