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Applied Physics Letters / Volume 97 / Issue 20 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 97, 201906 (2010); http://dx.doi.org/10.1063/1.3518477 (3 pages)

Optically generated adaptive localized structures in confined chiral liquid crystals doped with fullerene

O. Trushkevych1,2, P. Ackerman1, W. A. Crossland2, and I. I. Smalyukh1,3

1Department of Physics and Liquid Crystal Materials Research Center, University of Colorado, Boulder, Colorado 80309, USA
2Department of Engineering, University of Cambridge, Cambridge CB3 0FA, United Kingdom
3Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, USA

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(Received 9 October 2010; accepted 1 November 2010; published online 18 November 2010)

We report the facile optical creation of switchable localized structures in chiral liquid crystals doped with fullerene. In a cholesteric cell unwound by vertical boundary conditions, the initially dispersed fullerenes are deposited from the bulk to the surface of confining glass plates by low-intensity illumination. This alters the surface boundary conditions and allows for the creation of localized particlelike structures with twist-bound defects (dubbed Torons) that are controlled by electric fields and arranged into patterns of interest for photonic and electro-optic applications.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

chirality, cholesteric liquid crystals, disperse systems, doping, fullerenes

PACS

  • 61.30.Eb

    Experimental determinations of smectic, nematic, cholesteric, and other structures

  • 61.30.Jf

    Defects in liquid crystals

  • 82.70.-y

    Disperse systems; complex fluids

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3518477

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    I. I. Smalyukh, B. I. Senyuk, P. Palffy-Muhoray, O. D. Lavrentovich, H. Huang, E. C. Gartland, V. H. Bodnar, T. Kosa, and B. Taheri, Phys. Rev. E 72, 061707 (2005).

    I. C. Khoo, J. Ding, Y. Zhang, K. Chen, and A. Diaz, Appl. Phys. Lett. 82, 3587 (2003)APPLAB000082000021003587000001.

    M. Talarico, G. Carbone, R. Barberi, and A. Golemme, Appl. Phys. Lett. 85, 528 (2004)APPLAB000085000004000528000001.

    I. Jánossy, Phys. Rev. E 49, 2957 (1994).


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