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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 14 — Jul. 2, 2012
  • pp: 15209–15221

On liquid crystal diffractive optical elements utilizing inhomogeneous alignment

S. Valyukh, V. Chigrinov, H. S. Kwok, and H. Arwin  »View Author Affiliations


Optics Express, Vol. 20, Issue 14, pp. 15209-15221 (2012)
http://dx.doi.org/10.1364/OE.20.015209


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Abstract

Formation of a desired liquid crystal (LC) director distribution by the use of inhomogeneous anchoring and pre-tilt angle for electrically controlled diffractive optical elements (DOE) is studied. Such LC DOE can have high periodicity and diffraction efficiency. At the same time they are free of constructive regularities, e.g. a periodic arrangement of the electrodes or thickness deviations, which have undesired impact on diffractive characteristics of LC DOE of other types. We focus on evaluation of potential functional abilities of LC DOE with inhomogeneous alignment. The reasons causing restriction of the LC DOE diffraction efficiency and periodicity are considered. Approaches for improvement of characteristics of the LC DOE are discussed.

© 2012 OSA

OCIS Codes
(230.1950) Optical devices : Diffraction gratings
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

History
Original Manuscript: March 23, 2012
Revised Manuscript: April 29, 2012
Manuscript Accepted: May 1, 2012
Published: June 22, 2012

Citation
S. Valyukh, V. Chigrinov, H. S. Kwok, and H. Arwin, "On liquid crystal diffractive optical elements utilizing inhomogeneous alignment," Opt. Express 20, 15209-15221 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-14-15209


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