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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 6 — Jun. 1, 2013
  • pp: 842–852

Phase-dependence of gold nanoparticle dispersibility in blue phase and chiral nematic liquid crystals

Hiroyuki Yoshida, Kenta Inoue, Hitoshi Kubo, and Masanori Ozaki  »View Author Affiliations

Optical Materials Express, Vol. 3, Issue 6, pp. 842-852 (2013)

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We investigate the dispersibility of spherical gold nanoparticles in three phases of a chiral liquid crystal – blue phase I, blue phase II and the cholesteric phase – by UV-visible spectroscopy and optical microscopy. UV-visible spectroscopy revealed that a gradual red-shift and broadening of local surface plasmon resonance occur in the blue I and cholesteric phases. Moreover, optical microscopy revealed a clear difference in the aggregation behavior of nanoparticles depending on the phase, with uniform textures being observed in the blue II phase, and agglomerates forming in blue I and cholesteric phases. The difference in the dispersibility of nanoparticles is discussed in terms of the structure of each liquid crystal phase.

© 2013 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Liquid Crystals

Original Manuscript: April 9, 2013
Revised Manuscript: May 10, 2013
Manuscript Accepted: May 10, 2013
Published: May 21, 2013

Hiroyuki Yoshida, Kenta Inoue, Hitoshi Kubo, and Masanori Ozaki, "Phase-dependence of gold nanoparticle dispersibility in blue phase and chiral nematic liquid crystals," Opt. Mater. Express 3, 842-852 (2013)

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