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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 16 — Jun. 1, 2008
  • pp: 3015–3022

Formation of anisotropic diffraction gratings in a polymer-dispersed liquid crystal by polarization modulation using a spatial light modulator

Akifumi Ogiwara and Takuya Hirokari  »View Author Affiliations


Applied Optics, Vol. 47, Issue 16, pp. 3015-3022 (2008)
http://dx.doi.org/10.1364/AO.47.003015


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Abstract

Anisotropic diffraction gratings based on a holographic polymer-dispersed liquid crystal (HPDLC) are realized by interferometric exposure using a spatial light modulator (SLM). The SLM is used in the HPDLC grating formation for anisotropic holographic recordings of two-dimensional polarization states for an incident light beam. The diffraction efficiency for P-polarization and the distinctive ratio of diffraction efficiency in P-polarization to that in S-polarization increases with the signal level applied to the SLM. The resulting volume gratings exhibit diffraction efficiency of more than 60% and a distinctive ratio of diffraction over 100. The microscopic origin of the anisotropic property is investigated by an optical polarizing microscope. The novel characteristics of the anisotropic diffraction properties of HPDLC are applied to an image reconstruction technique.

© 2008 Optical Society of America

OCIS Codes
(090.2900) Holography : Optical storage materials
(160.3710) Materials : Liquid crystals
(160.5470) Materials : Polymers

ToC Category:
Diffraction and Gratings

History
Original Manuscript: March 14, 2008
Manuscript Accepted: May 9, 2008
Published: May 23, 2008

Citation
Akifumi Ogiwara and Takuya Hirokari, "Formation of anisotropic diffraction gratings in a polymer-dispersed liquid crystal by polarization modulation using a spatial light modulator," Appl. Opt. 47, 3015-3022 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-16-3015


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