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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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Publication details

The article was received on 17 Oct 2013, accepted on 24 Nov 2013 and first published on 27 Nov 2013


Article type: Communication
DOI: 10.1039/C3TC32055C
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. C, 2014,2, 806-810
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    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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