Issue 5, 2014

Tuneable multicoloured patterns from photonic cross-communication between cholesteric liquid crystal droplets

Abstract

Monodisperse droplets of planar-aligned cholesteric (N*) liquid crystal exhibit an intriguing capacity for photonic cross-communication, giving rise to colourful patterns that depend sensitively on the N* pitch, droplet positions and illuminated area. The phenomenon results from a combination of omnidirectional selective reflection of N* droplets—which thus act as spherically symmetric self-assembled photonic crystals—and total internal reflection at the continuous phase surface. We outline how the unique optical properties can be employed in numerous applications.

Graphical abstract: Tuneable multicoloured patterns from photonic cross-communication between cholesteric liquid crystal droplets

Supplementary files

Article information

Article type
Communication
Submitted
17 Oct 2013
Accepted
24 Nov 2013
First published
27 Nov 2013

J. Mater. Chem. C, 2014,2, 806-810

Author version available

Tuneable multicoloured patterns from photonic cross-communication between cholesteric liquid crystal droplets

J. Noh, H. Liang, I. Drevensek-Olenik and J. P. F. Lagerwall, J. Mater. Chem. C, 2014, 2, 806 DOI: 10.1039/C3TC32055C

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