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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 14 — Jul. 6, 2009
  • pp: 11530–11536

Polarization independent beam fanning using a multi-domain liquid crystal cell

Hongwen Ren and Shin-Tson Wu  »View Author Affiliations


Optics Express, Vol. 17, Issue 14, pp. 11530-11536 (2009)
http://dx.doi.org/10.1364/OE.17.011530


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Abstract

Polarization independent beam fanning using a multi-domain liquid crystal (LC) cell is demonstrated experimentally. In the neighboring domains, the LC directors are aligned in orthogonal directions. To prove concepts, two hybrid-aligned LC cells with four and six domains were fabricated. Applying a voltage across the LC layer will change the phase difference between the neighboring domains. When the phase difference is 2mπ (m is an integer), the LC cell will not disturb the incident beam. However, if the phase shift is (2m+1)π, the outgoing beam will fan out into several beams; the number of fanout beams is equal to the domain number.

© 2009 OSA

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(160.3710) Materials : Liquid crystals

ToC Category:
Optical Devices

History
Original Manuscript: May 15, 2009
Revised Manuscript: June 16, 2009
Manuscript Accepted: June 19, 2009
Published: June 24, 2009

Citation
Hongwen Ren and Shin-Tson Wu, "Polarization independent beam fanning using a multi-domain liquid crystal cell," Opt. Express 17, 11530-11536 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-14-11530


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