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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 4611–4617

Electrooptic jumps in natural helicoidal photonic bandgap structures

Karen Allahverdyan and Tigran Galstian  »View Author Affiliations

Optics Express, Vol. 19, Issue 5, pp. 4611-4617 (2011)

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Strong electro mechanical effect was used to generate and study self adaptation and pitch jumps in a helicoidal photonic bandgap structure naturally formed by a cholesteric liquid crystal. The negative dielectric anisotropy of the material allowed its stabilization by the electric field and important thickness changes, achieved thanks to the use of a very thin substrate, allowed the observation of multiple dynamic jumps at fixed deformation conditions. Spectral and morphological studies of the material during those jumps were performed too.

© 2011 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(160.5293) Materials : Photonic bandgap materials

ToC Category:
Photonic Crystals

Original Manuscript: November 24, 2010
Revised Manuscript: December 28, 2010
Manuscript Accepted: December 31, 2010
Published: February 24, 2011

Karen Allahverdyan and Tigran Galstian, "Electrooptic jumps in natural helicoidal photonic bandgap structures," Opt. Express 19, 4611-4617 (2011)

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  19. We thank the referee for pointing out this possibility.

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