Optical Trapping of Colloidal Particles and Measurement of the Defect Line Tension and Colloidal Forces in a Thermotropic Nematic Liquid Crystal

Chemical Physics Interdisciplinary Program
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  2. Optical Trapping of Colloidal Particles and Measurement of the Defect Line Tension and Colloidal Forces in a Thermotropic Nematic Liquid Crystal
Author(s)
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.
Format
Article
Identifier(s)
10.1063/1.1849839
Publication Date
2005-01-10
Publication Title
Applied Physics Letters
Volume
86
Issue
2
Keywords
Subject
Rights
http://rightsstatements.org/vocab/InC/1.0/
Community
Chemical Physics Interdisciplinary Program
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.
Permalink https://oaks.kent.edu/cpippubs/104
Smalyukh, I., Kuzmin, A., Kachynski, A., Prasad, P., & Lavrentovich, O. (2005). Optical Trapping of Colloidal Particles and Measurement of the Defect Line Tension and Colloidal Forces in a Thermotropic Nematic Liquid Crystal (1–). Applied Physics Letters. https://doi.org/10.1063/1.1849839
Smalyukh, Ivan, A. Kuzmin, A. Kachynski, P. Prasad, and Oleg Lavrentovich. 2005. “Optical Trapping of Colloidal Particles and Measurement of the Defect Line Tension and Colloidal Forces in a Thermotropic Nematic Liquid Crystal”. Applied Physics Letters. https://doi.org/10.1063/1.1849839.
Smalyukh, Ivan, et al. Optical Trapping of Colloidal Particles and Measurement of the Defect Line Tension and Colloidal Forces in a Thermotropic Nematic Liquid Crystal. Applied Physics Letters, 10 Jan. 2005, https://doi.org/10.1063/1.1849839.