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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 8 — Aug. 1, 2012
  • pp: 1135–1140

Polymer-stabilized blue phase liquid crystal with a negative Kerr constant

Yan Li, Yuan Chen, Jin Yan, Yifan Liu, Jianpeng Cui, Qionghua Wang, and Shin-Tson Wu  »View Author Affiliations

Optical Materials Express, Vol. 2, Issue 8, pp. 1135-1140 (2012)

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A polymer-stabilized blue-phase liquid crystal (BPLC) with a negative Kerr constant is reported. In a voltage-on state, the double-twist BPLC molecules within the lattice cylinders are reoriented perpendicular to the applied electric field because of their negative dielectric anisotropy. As a result, the induced birefringence has a negative value, which leads to a negative Kerr constant. The negative sign of Kerr constant is experimentally validated by using a quarter-wave plate and a vertical field switching cell. Such a BPLC shows a negligible (~1%) hysteresis and fast response time (~1ms) at the room temperature, although its Kerr constant is relatively small because the employed host has a small Δε.

© 2012 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(160.5470) Materials : Polymers

ToC Category:
Liquid Crystals

Original Manuscript: July 18, 2012
Manuscript Accepted: July 24, 2012
Published: July 26, 2012

Yan Li, Yuan Chen, Jin Yan, Yifan Liu, Jianpeng Cui, Qionghua Wang, and Shin-Tson Wu, "Polymer-stabilized blue phase liquid crystal with a negative Kerr constant," Opt. Mater. Express 2, 1135-1140 (2012)

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