EXPERIMENTAL INVESTIGATION OF QUENCHING OF DEFECTS BY EXTERNAL ELECTRICAL FIELD AND ITS INFLUENCES ON PHOTONIC BAND GAP IN CHOLESTERIC LIQUID CRYSTALS

K.R. Allahverdyan

doi:10.46991/PYSU:A/2012.46.2.055

EXPERIMENTAL INVESTIGATION OF QUENCHING OF DEFECTS BY EXTERNAL ELECTRICAL FIELD AND ITS INFLUENCES ON PHOTONIC BAND GAP IN CHOLESTERIC LIQUID CRYSTALS

Authors

K.R. Allahverdyan COPL , Laval University, Canada, Chair of Optics, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:A/2012.46.2.055

Keywords:

holesteric liquid crystal, disclination, defect

Abstract

The possibility of forced quenching of defects in cholesteric liquid crystals with negative dielectric anisotropy has been experimentally examined. It was experimentally shown for the first time that under homeotropic boundary condi-tions the sharpness of edges of photonic band gap in cholesteric liquid crystals with negative dielectric anisotropy increases in the course of quenching of defects.

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Published

2012-05-10

How to Cite

Allahverdyan, K. (2012). EXPERIMENTAL INVESTIGATION OF QUENCHING OF DEFECTS BY EXTERNAL ELECTRICAL FIELD AND ITS INFLUENCES ON PHOTONIC BAND GAP IN CHOLESTERIC LIQUID CRYSTALS. Proceedings of the YSU A: Physical and Mathematical Sciences, 46(2 (228), 55–61. https://doi.org/10.46991/PYSU:A/2012.46.2.055