Nematic colloidal assemblies: towards photonic crystals and metamaterials

Slobodan Žumer; Igor Muševic; Miha Ravnik; Miha Škarabot; Igor Poberaj; Dušan Babič; Uroš Tkalec

doi:10.1117/12.769070

29 January 2008 Nematic colloidal assemblies: towards photonic crystals and metamaterials

Slobodan Žumer, Igor Muševic, Miha Ravnik, Miha Škarabot, Igor Poberaj, Dušan Babič, Uroš Tkalec

Proceedings Volume 6911, Emerging Liquid Crystal Technologies III; 69110C (2008) https://doi.org/10.1117/12.769070
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

Colloidal structures assembled in confined nematic liquid crystals are examined. Theoretical predictions based on Landau-type approaches are complemented with the latest studies of laser assisted colloidal assembling. Effective colloidal interactions are particularly sensitive to the confinement and external fields. Their complexity leads to numerous stable or metastable colloidal superstructures not present in isotropic solvents. Particularly important are colloidal structures coupled by entangled disclinations. Such a string-like coupling is very robust and opens new routes to assemble new photonic materials.

Citation Download Citation

Slobodan Žumer, Igor Muševic, Miha Ravnik, Miha Škarabot, Igor Poberaj, Dušan Babič, and Uroš Tkalec "Nematic colloidal assemblies: towards photonic crystals and metamaterials", Proc. SPIE 6911, Emerging Liquid Crystal Technologies III, 69110C (29 January 2008); https://doi.org/10.1117/12.769070

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