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Advances in Cholesteric Liquid Crystals

Book release edited at CEMES

by PREVOTS Evelyne - published on

« Advances in Cholesteric Liquid Crystals » contains eight contributions on fundamental investigations about defects, textures and structures of cholesteric materials, and experimental studies aimed at applications such as temperature sensors, head-up displays for improving automobile driving safety or smart windows.

Book cover

Most of optical properties of liquid crystals are due to chiral structures. With their helical structure, the cholesterics figure prominently in liquid crystal science. Studying them provides natural links between different disciplines in soft matter science and well beyond. It promises a myriad of applications, especially in photonics and in optics. Besides, the cholesteric structure is a ubiquitous design in animal and plant kingdoms.

This book covers experimental investigations, theoretical aspects and applications. It includes one review paper on the packing of double‑stranded DNA molecules [Y. Yevdokimov et al.] and seven research articles that we may set into two groups:

  • Fundamental investigations about defects, textures and structures:
    • Experimental studies and computer simulations of director configurations and topological defects in nematic and cholesteric layers with tangential-conical boundary conditions [M. N. Krakhalev et al.].
    • Theoretical investigations about the role of length polydispersity on the helical pitch of nanorod‑based cholesterics with a continuous length polydispersity [H. H. Wensink].
    • Mechanism of voltage-induced changes of cholesteric textures by dielectric heating, with the case of pulses shaped to align the uniform lying helix texture [C.-H. Yu et al.].
    • Theoretical analysis of surface patterns formed at the free surface of cholesteric films, with a focus on the multiple-length-scale surface wrinkling phenomenon [Z. Wang et al.]
       
       
  • Experimental studies aimed at applications:
    • Optical fibers coated with a cholesteric as temperature sensors [Y. Han et al.].
    • Head-up displays for improving automobile driving safety based on the dual role of reflector and polarizer of cholesterics [Y. Liu et al.].
    • Cholesteric materials for field-induced opaque-to-transparent smart windows made of a hybrid association of Polymer-Dispersed and Polymer-Stabilized Liquid Crystal morphologies [C.-Y. Li et al.].

 

Reference

ISBN 978-3-03928-228-9
https://www.mdpi.com/books/pdfview/book/2007
Advances in Cholesteric Liquid Crystals
Michel Mitov (Ed.)
Pages: 122
Published: February 2020

 

Contact

Michel Mitov