Electro-optics of cholesterics with oblique helicoidal director (Conference Presentation)

Oleg D. Lavrentovich; Olena Iadlovska; Sergij V. Shiyanovskii

doi:10.1117/12.2272608

19 September 2017 Electro-optics of cholesterics with oblique helicoidal director (Conference Presentation)

Oleg D. Lavrentovich, Olena Iadlovska, Sergij V. Shiyanovskii

Author Affiliations +

Proceedings Volume 10361, Liquid Crystals XXI; 1036102 (2017) https://doi.org/10.1117/12.2272608
Event: SPIE Organic Photonics + Electronics, 2017, San Diego, California, United States

Abstract

Liquid crystal materials with tendency to bend are capable of forming a unique type of a helicoidal structure in which the director is titled with respect to the helicoidal axis rather than orthogonal to it, as in regular cholecterics. The new state occurs in presence of an electric or magnetic field. It is called a cholesteric with oblique helicoidal structure or simply a twist-bend cholesteric, since both twist and bend deformations are characteristic of the ground state supported by the external field. Tilted configuration of the director and absence of density modulation makes the twist-bend cholesterics a unique material for various electro-optical applications. The presentation discusses electrically and magnetically tuned selective reflection of light as well as tunable lasing enabled by these materials. It is demonstrated that the electro-optical performance of the twist-bend cholesterics depends strongly on the type of anchoring conditions imposed by the boundaries of the cell. The work is supported by NSF grant DMR-1410378.

Conference Presentation

Citation Download Citation

Oleg D. Lavrentovich, Olena Iadlovska, and Sergij V. Shiyanovskii "Electro-optics of cholesterics with oblique helicoidal director (Conference Presentation)", Proc. SPIE 10361, Liquid Crystals XXI, 1036102 (19 September 2017); https://doi.org/10.1117/12.2272608

Access the abstract

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Electro optics

Reflection

Liquid crystals

Crystals

Liquids

Magnetism

Modulation

Show All Keywords

RELATED CONTENT

Operating conditions of some liquid crystals in interactions with physical...
Proceedings of SPIE (January 01 1998)

Growth of nonlinear optical materials at Alabama A&M University
Proceedings of SPIE (October 25 2002)

Nonlinear optical properties of the main chain type liquid crystalline...
Proceedings of SPIE (October 14 1998)

Magnetically controlled anchoring of nematic liquid crystal
Proceedings of SPIE (December 03 2003)

Influence of anchoring energy inhomogeneity on director distribution in twist...
Proceedings of SPIE (December 03 2003)

Development Of Polymeric Nonlinear Optical Materials
Proceedings of SPIE (January 28 1987)

Organic Polymers As Optically Nonlinear Media
Proceedings of SPIE (December 21 1988)

Subscribe to Digital Library

Receive Erratum Email Alert

Show All Keywords

Keywords/Phrases

Search In:

Publication Years