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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 22 — Aug. 1, 2013
  • pp: E6–E14

Size dependence of harvested BaTiO3 nanoparticles on the electro-optic and dielectric properties of ferroelectric liquid crystal nanocolloids

Arkadiusz Rudzki, Dean R. Evans, Gary Cook, and Wolfgang Haase  »View Author Affiliations


Applied Optics, Vol. 52, Issue 22, pp. E6-E14 (2013)
http://dx.doi.org/10.1364/AO.52.0000E6


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Abstract

The influence of the size of harvested barium titanate nanoparticles on the properties of ferroelectric liquid crystal (FLC) nanocolloids was investigated by electro-optical and dielectric methods. The spontaneous polarization and the switching time are decreased for the liquid crystalline nanocolloids compared to nondoped FLC mixtures of different dipole strengths; this dependence is stronger for small size particles (9 nm) and weaker for larger size particles (26 nm) by the same concentration in weight. The decrease of the Goldstone mode (GM) relaxation frequency and the decrease of the dielectric GM absorption strength of the nanocomposites compared to the nondoped FLC mixture go stepwise with the increase of the nanoparticles diameter. Results have been interpreted via strong interaction between the FLC dipoles and the dipoles of the highly polar barium titanate nanoparticles.

© 2013 Optical Society of America

OCIS Codes
(120.4630) Instrumentation, measurement, and metrology : Optical inspection
(160.3710) Materials : Liquid crystals
(160.4760) Materials : Optical properties
(160.4890) Materials : Organic materials
(160.1585) Materials : Chiral media
(130.2260) Integrated optics : Ferroelectrics

History
Original Manuscript: December 19, 2012
Revised Manuscript: February 27, 2013
Manuscript Accepted: March 4, 2013
Published: April 15, 2013

Virtual Issues
Hybrid Organic-Inorganic Materials for Novel Photonic Applications (2013) Optical Materials Express

Citation
Arkadiusz Rudzki, Dean R. Evans, Gary Cook, and Wolfgang Haase, "Size dependence of harvested BaTiO3 nanoparticles on the electro-optic and dielectric properties of ferroelectric liquid crystal nanocolloids," Appl. Opt. 52, E6-E14 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-22-E6


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