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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 10 — Oct. 1, 2013
  • pp: 2722–2730

Rigorous broadband investigation of liquid-crystal plasmonic structures using finite-difference time-domain dispersive-anisotropic models

Konstantinos P. Prokopidis, Dimitrios C. Zografopoulos, and Emmanouil E. Kriezis  »View Author Affiliations


JOSA B, Vol. 30, Issue 10, pp. 2722-2730 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002722


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Abstract

A finite-difference time-domain scheme is proposed for the rigorous study of liquid-crystal photonic and plasmonic structures. The model takes into account the full-tensor liquid-crystal anisotropy as well as the permittivity dispersion of all materials involved. Isotropic materials are modeled via a generalized critical points model, while the dispersion of the liquid-crystal indices is described by Lorentzian terms. The validity of the proposed scheme is verified via a series of examples, ranging from transmission through liquid-crystal waveplates and cholesteric slabs to the plasmonic response of arrays of gold nanostripes with a liquid-crystal overlayer and the dispersive properties of metal–liquid-crystal–metal plasmonic waveguides. Results are directly compared with reference analytical or frequency-domain numerical solutions.

© 2013 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(240.6680) Optics at surfaces : Surface plasmons
(050.1755) Diffraction and gratings : Computational electromagnetic methods
(250.5403) Optoelectronics : Plasmonics
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Materials

History
Original Manuscript: June 20, 2013
Revised Manuscript: August 20, 2013
Manuscript Accepted: August 28, 2013
Published: September 26, 2013

Citation
Konstantinos P. Prokopidis, Dimitrios C. Zografopoulos, and Emmanouil E. Kriezis, "Rigorous broadband investigation of liquid-crystal plasmonic structures using finite-difference time-domain dispersive-anisotropic models," J. Opt. Soc. Am. B 30, 2722-2730 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-10-2722

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