TITLE

High-efficiency optical transfer of torque to a nematic liquid crystal droplet

AUTHOR(S)
Juodkazis, Saulius; Matsuo, Shigeki; Murazawa, Naoki; Hasegawa, Ichiro; Misawa, Hiroaki
PUB. DATE
June 2003
SOURCE
Applied Physics Letters;6/30/2003, Vol. 82 Issue 26, p4657
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the determination of the difference in the refractive index between the ordinary and extraordinary rays in droplets of nematic liquid crystal E-44 at the wavelength of laser trapping, 1064 nm. This difference was calculated by measuring the ellipticity of laser tweezers for the moment at which rotation of the trapped droplet starts. The precision of this determination of the refractive index difference is approximately 5×10[SUP-3]. Hydrophobic nematic liquid crystal E-44 formed 0.5-5-μm droplets when cast into D[SUB2]O. The efficiency of the transfer of light torque to the liquid crystal droplets was determined to be 70% for the no-slip-boundary condition.
ACCESSION #
10106522

 

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