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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9744–9749

Fast-switching bistable cholesteric intensity modulator

Yu-Cheng Hsiao, Chen-Yu Tang, and Wei Lee  »View Author Affiliations

Optics Express, Vol. 19, Issue 10, pp. 9744-9749 (2011)

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A fast-switching bistable optical intensity modulator is demonstrated. Using a dual-frequency cholesteric liquid crystal, the direct switching is achieved from the scattering focal conic state to the transparent long-pitch planar state. In comparison with the bistable cholesteric devices proposed previously, our device, characterized by its capability of direct two-way transitions between the two bistable states, possesses a very short transition time from the focal conic state to the planar state as short as 10 ms. No voltage has to be applied to sustain the optical states, making the device low energy consuming. Potential applications of this device are addressed.

© 2011 OSA

OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: February 16, 2011
Revised Manuscript: March 25, 2011
Manuscript Accepted: May 1, 2011
Published: May 4, 2011

Yu-Cheng Hsiao, Chen-Yu Tang, and Wei Lee, "Fast-switching bistable cholesteric intensity modulator," Opt. Express 19, 9744-9749 (2011)

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