Theoretical and experimental studies of hyperreflective polymer-network cholesteric liquid crystal structures with helicity inversion

OPTICS COMMUNICATIONS

卷:282

Article

Tasolamprou, A. C.¹  Mitov, M.²  Zografopoulos, D. C.¹  Kriezis, E. E.¹ 

[1] Aristotle Univ Thessaloniki, Dept Elect & Comp Engn, GR-54124 Thessaloniki, Greece

[2] Univ Toulouse, CNRS, CEMES, Ctr Elaborat Mat & Etud Struct, F-31055 Toulouse 4, France

关键词: Cholesteric liquid crystals;    Photonic bandgap materials;    Polymer-dispersed liquid crystals;    Domain structures;   

DOI  :  10.1016/j.optcom.2008.11.049

来源: Elsevier

【 摘 要 】

Single-layer cholesteric liquid crystals exhibit a reflection coefficient which is at most 50% for unpolarized incident light. We give theoretical and experimental evidence of single-layer polymer-stabilized cholesteric liquid-crystalline structures that demonstrate hyper-reflective properties. Such original features are derived by the concurrent and randomly interlaced presence of both helicities. The fundamental properties of such structures are revealed by detailed numerical simulations based on a stochastic approach. (C) 2008 Elsevier B.V. All rights reserved.

【 授权许可】

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