Publication Title

Applied Physics Letters

Publication Date

1-10-2005

Document Type

Article

DOI

10.1063/1.1849839

Keywords

Fluorescence

Disciplines

Physics

Abstract

We demonstrate optical trapping and manipulation of transparent microparticles suspended in a thermotropic nematic liquid crystal with low birefringence. We employ the particle manipulation to measure line tension of a topologically stable disclination line and to determine colloidal interaction of particles with perpendicular surface anchoring of the director. The three-dimensional director fields and positions of the particles manipulated by laser tweezers are visualized by fluorescence confocal polarizing microscopy.

Comments

Copyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 86, 021913 (2005) and may be found at http://dx.doi.org/10.1063/1.1849839.


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