14 November 2017 Tunable surface waves in nonlinear graphene-based one-dimensional-photonic crystal
Author Affiliations +
J. of Nanophotonics, 11(4), 046010 (2017). doi:10.1117/1.JNP.11.046010
Abstract
The nonlinear TE surface waves guided by an interface of a semi-infinite Kerr-type dielectric medium and a one-dimensional graphene-based photonic crystal have been investigated using the transfer-matrix method. It is shown that increasing the intensity of the incident beam drastically changes dispersion behavior inside the graphene-induced photonic band gap as a result of nonlinearity. Also regarding the simulation results, it reveals that the peculiar dispersion that is governed by a nonlinear structure appeared to be tuned by graphene conductivity via an external electric field. Applying such an electric field makes it possible to easily tune the nonlinear surface waves at the desired frequency only by adjusting the chemical potential of the graphene. Also, it is shown that for application purposes, the results of studies can be applied to the case in which graphene nanolayers are embedded by identical dielectric constant, i.e., zero permittivity contrast of dielectric.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Babak Tavakkoly Moghaddam, Samad Roshan Entezar, Ebrahim Safari, Amir Madani, "Tunable surface waves in nonlinear graphene-based one-dimensional-photonic crystal," Journal of Nanophotonics 11(4), 046010 (14 November 2017). http://dx.doi.org/10.1117/1.JNP.11.046010 Submission: Received 1 August 2017; Accepted 17 October 2017
Submission: Received 1 August 2017; Accepted 17 October 2017
JOURNAL ARTICLE
11 PAGES


SHARE
KEYWORDS
Graphene

Nonlinear crystals

Dielectrics

Interfaces

Dispersion

Crystals

Photonic crystals

Back to Top