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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 9 — Apr. 27, 2009
  • pp: 7130–7137

High speed liquid crystal over silicon display based on the flexoelectro-optic effect

Jing Chen, Stephen M. Morris, Timothy D. Wilkinson, Jon P. Freeman, and Harry J. Coles  »View Author Affiliations

Optics Express, Vol. 17, Issue 9, pp. 7130-7137 (2009)

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One of the key technologies to evolve in the displays market in recent years is liquid crystal over silicon (LCOS) microdisplays. Traditional LCOS devices and applications such as rear projection televisions, have been based on intensity modulation electro-optical effects, however, recent developments have shown that multi-level phase modulation from these devices is extremely sought after for applications such as holographic projectors, optical correlators and adaptive optics. Here, we propose alternative device geometry based on the flexoelectric-optic effect in a chiral nematic liquid crystal. This device is capable of delivering a multilevel phase shift at response times less than 100 μsec which has been verified by phase shift interferometry using an LCOS test device. The flexoelectric on silicon device, due to its remarkable characteristics, enables the next generation of holographic devices to be realized.

© 2009 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(230.0250) Optical devices : Optoelectronics
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: March 9, 2009
Revised Manuscript: April 9, 2009
Manuscript Accepted: April 12, 2009
Published: April 15, 2009

Jing Chen, Stephen M. Morris, Timothy D. Wilkinson, Jon P. Freeman, and Harry J. Coles, "High speed liquid crystal over silicon display based on the flexoelectro-optic effect," Opt. Express 17, 7130-7137 (2009)

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