Characterization of the diffraction efficiency of new holographic gratings with a nematic film–polymer-slice sequence structure
JOSA B, Vol. 21, Issue 11, pp. 1939-1947 (2004)
http://dx.doi.org/10.1364/JOSAB.21.001939
Acrobat PDF (599 KB)
Abstract
We have performed a first characterization of the diffraction efficiency of gratings written in liquid-crystalline composite materials by the interference pattern of two curing beams. The grating fringes consist of polymer slices separated by films of continuous nematic phase. The dependence of the diffraction efficiency on temperature reveals a nonmonotonic behavior, with several maxima and minima. The shapes of curves are dependent on slight changes in the initial concentration of the nematic component of the mixture; the number of extrema increases with an increase of this concentration. The dependence of the diffraction efficiency on an applied external voltage also appears to be nonmonotonic: The shape depends on the sample’s temperature. Both switch-on and switch-off responses have been observed. The behavior of our gratings can be explained in the framework of the conventional Kogelnik theory for the diffraction efficiency of Bragg gratings.
© 2004 Optical Society of America
OCIS Codes
(090.2900) Holography : Optical storage materials
(160.2900) Materials : Optical storage materials
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices
(310.6860) Thin films : Thin films, optical properties
Citation
Roberto Caputo, Alessandro Veltri, Cesare P. Umeton, and Andrey V. Sukhov, "Characterization of the diffraction efficiency of new holographic gratings with a nematic film–polymer-slice sequence structure," J. Opt. Soc. Am. B 21, 1939-1947 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-11-1939
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. 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 
- Phenomenological characterization of bacteriorhodopsin–D85N photocycle (JOSAB)
- Comparison of extended Jones matrices for twisted nematic liquid-crystal displays at oblique angles of incidence (JOSAA)
- Two kinetic regimes for high-temperature photorefractive phenomena in LiNbO3 (JOSAB)
- Holographic Bragg gratings in a photoresponsive cross-linked polymer–liquid-crystal composite (OL)
- Polarization-selective switching in holographically formed polymer dispersed liquid crystals (OL)
Related Conference Papers
- Recording of polarization holograms in photodarkened amorphous As2S3 thin films
- High contrast modulation of a silicon-based optical switch using liquid crystals
- Photocontrol of thermally enhanced birefringence in semicrystalline azobenzene-containing polyester films
- Second-harmonic generation in nonpolar chiral materials: relationship between molecular and macroscopic properties
- Second-harmonic generation in nonpolar chiral materials: relationship between molecular and macroscopic properties
- Simultaneous photorefractive recording and fixing in lithium niobate crystals using self-stabilized techniques: effect of the iron reduction state
« Previous Article | Next Article »
OSA is a member of 