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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 35 — Dec. 10, 2000
  • pp: 6545–6555

Liquid-crystal blazed-grating beam deflector

Xu Wang, Daniel Wilson, Richard Muller, Paul Maker, and Demetri Psaltis  »View Author Affiliations


Applied Optics, Vol. 39, Issue 35, pp. 6545-6555 (2000)
http://dx.doi.org/10.1364/AO.39.006545


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Abstract

A transmission-type nonmechanical multiple-angle beam-steering device that uses liquid-crystal blazed grating has been developed. Sixteen steering angles with a contrast ratio of 18 has been demonstrated. A detailed analysis of the liquid-crystal and poly(methyl methacrylate) blazed-grating deflector was carried out to provide guidance during the deflector’s development. A manufacturing offset compensation technique is proposed to improve the device’s performance greatly. A hybrid approach utilizing electrically generated blazed grating combined with the cascading approach described here yields in excess of 500 deflecting angles.

© 2000 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(050.1970) Diffraction and gratings : Diffractive optics
(230.2090) Optical devices : Electro-optical devices
(230.3720) Optical devices : Liquid-crystal devices

History
Original Manuscript: January 5, 2000
Revised Manuscript: August 25, 2000
Published: December 10, 2000

Citation
Xu Wang, Daniel Wilson, Richard Muller, Paul Maker, and Demetri Psaltis, "Liquid-crystal blazed-grating beam deflector," Appl. Opt. 39, 6545-6555 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-35-6545


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