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Issue 5, 2014
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Tuneable multicoloured patterns from photonic cross-communication between cholesteric liquid crystal droplets

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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

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Article information


Submitted
17 Oct 2013
Accepted
24 Nov 2013
First published
27 Nov 2013

J. Mater. Chem. C, 2014,2, 806-810
Article type
Communication
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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