Title

Polarization-Universal Bandgap In Periodically Twisted Nematics

Abstract

Cholesteric liquid crystals are known to possess bandgap and exhibit strong reflection for one of two circular polarizations of light. We suggest a periodically twisted nematic liquid crystal as a medium, which possesses bandgap and exhibits strong reflection for any polarization of normally incident light. Two possible structures are considered: a sinusoidal modulation profile and a rectangular modulation profile. In both cases, the maximum bandgap of a periodically twisted structure is approximately twice as narrow as that of cholesterics. However, the polarization properties of these structures may make them more advantageous than cholesterics in a variety of applications. © 2006 Optical Society of America.

Publication Date

6-1-2006

Publication Title

Optics Letters

Volume

31

Issue

11

Number of Pages

1678-1682

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.31.001678

Socpus ID

33745743897 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33745743897

This document is currently not available here.

Share

COinS