Confined blue phases: trapping of colloidal particles in disclination superstructures

Slobodan Zumer; Miha Ravnik; Jun-ichi Fukuda

doi:10.1117/12.893160

16 September 2011 Confined blue phases: trapping of colloidal particles in disclination superstructures

Slobodan Zumer, Miha Ravnik, Jun-ichi Fukuda

Proceedings Volume 8114, Liquid Crystals XV; 811403 (2011) https://doi.org/10.1117/12.893160
Event: SPIE Photonic Devices + Applications, 2011, San Diego, California, United States

Abstract

In confined blue phases numerous quasi 2D disclination networks ranging from rings to double helices can be stable. We have recently demonstrated how such networks act as arrays of trapping sites that can lead to easy assembling of colloidal particles in complex 2D lattice structures. In this short overview we summarize main results of our Landau - de Gennes modeling combined with topology that was proven to be useful in bulk blue phase colloids. Effects of confinement, particle anchoring, and particle sizes that can range from micron to nanometre scale are presented. Quasi 2D colloidal crystals that can be easily manipulated by external stimuli via affecting liquid crystal and/or colloidal particles are expected to have possible photonic applications.

Citation Download Citation

Slobodan Zumer, Miha Ravnik, and Jun-ichi Fukuda "Confined blue phases: trapping of colloidal particles in disclination superstructures", Proc. SPIE 8114, Liquid Crystals XV, 811403 (16 September 2011); https://doi.org/10.1117/12.893160

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