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Theoretical study of liquid crystal dielectric-loaded plasmonic waveguide

Published online by Cambridge University Press:  07 December 2015

Hamed Armand  and
M. Dashti Ardakani
Hamed Armand
Affiliation:
Department of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran.
M. Dashti Ardakani*
Affiliation:
Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran. Phone: +98 913 359 4943
*
Corresponding author: M. Dashti Ardakani Email: [email protected]
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Abstract

A fully two-dimensional theoretical study of the electromagnetic wave propagation through Metal–Liquid Crystal–Metal (M–LC–M) waveguide structure is presented. Dispersion relations corresponding to both symmetric and antisymmetric-coupled surface plasmons polaritons modes in M–LC–M structure are derived and numerically solved. The effects of LC tilt angles on the effective refractive index and propagation length are proposed. The analytical method is in good agreement with those obtained from finite-difference time-domain simulation. The obtained analytic formula can be used as an efficient element in designing tunable ultrahigh nanoscale integrated plasmonic devices.

Keywords

PlasmonicSurface plasmonsLiquid crystalFDTD
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 2 , March 2017 , pp. 275 - 280
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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