Main > HPArticle > Electrically tunable helicity of cholesteric heliconical superstructure
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  • Manuscript Accepted: Jun. 23, 2020

    Online Published: Jun. 28, 2020

Chinese Optics Letters, 2020, Vol. 18, Issue 8, pp.

Electrically tunable helicity of cholesteric heliconical superstructure [Early Posting]

Yuan Cong-Long, HUang Wenbing, Wang Xiaoqian, Shen Dong, Zheng Zhi-gang

Author Affiliations

  • East China University of Science and Technology
  • 华东理工大学
  • East China University of Science and Technology

Abstract

The dynamic manipulation of the helicity in cholesteric helical superstructure could enable precise control over its physical and chemical properties, thus opening numerous possibilities for exploring multifunctional devices. When cholesteric material satisfies sufficiently small bending elastic effect, an electrically induced deformation named cholesteric heliconical superstructure is formed. Through theoretical and numerical analysis, we systematically studied the tunable helicity of heliconical superstructure, including the evolution of the corresponding oblique angle and pitch length. To further confirm the optical properties, Berreman’s 4×4 matrix method was employed to numerically analyze the corresponding structure reflection under the dual stimuli of chirality and electric field.

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