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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 17 — Sep. 1, 2014
  • pp: 5146–5149

Negative dispersion of birefringence in two-dimensionally self-organized smectic liquid crystal and monomer thin film

Hyojin Lee and Ji-Hoon Lee  »View Author Affiliations


Optics Letters, Vol. 39, Issue 17, pp. 5146-5149 (2014)
http://dx.doi.org/10.1364/OL.39.005146


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Abstract

We suggest a method to obtain a negative dispersion (ND) of birefringence using a two-dimensional self-organization of smectic liquid crystal (LC) and monomer molecules. The averaged orientation of the smectic LC was the layer normal direction with the extraordinary refractive index ne. Meanwhile, the orientation of the monomer molecules was templated by the host-smectic LC and parallel to the layer plane corresponding to the ordinary refractive index no. We selected the LC molecules absorbing a shorter wavelength of UV light rather than the polymerized monomers, hence ne was more smoothly decreased than no in the visible-wavelength range. Consequently, the birefringence Δnneno was increased with a longer wavelength, thus giving a ND of birefringence. Using the proposed method, the ND of birefringence could be obtained in a single layer, which is desirable for thin flexible applications.

© 2014 Optical Society of America

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(160.3710) Materials : Liquid crystals
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Materials

History
Original Manuscript: July 1, 2014
Revised Manuscript: July 22, 2014
Manuscript Accepted: July 23, 2014
Published: August 26, 2014

Citation
Hyojin Lee and Ji-Hoon Lee, "Negative dispersion of birefringence in two-dimensionally self-organized smectic liquid crystal and monomer thin film," Opt. Lett. 39, 5146-5149 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-17-5146


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