Nonlinear graphene plasmonics: Amplitude equation for surface plasmons

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Abstract

Using perturbation expansion of Maxwell equations, an amplitude equation is derived for nonlinear transverse magnetic (TM) and transverse electric (TE) surface plasmon waves supported by graphene. The equation describes the interplay between in-plane beam diffraction and nonlinearity due to light intensity induced corrections to graphene conductivity and susceptibility of dielectrics. For strongly localized TM plasmons, graphene is found to bring the superior contribution to the overall nonlinearity. In contrast, nonlinear response of the substrate and cladding dielectrics can become dominant for weakly localized TE plasmons.
LanguageEnglish
Article number013830
JournalPhysical Review A: Atomic, Molecular, and Optical Physics
Volume87
Issue number1
DOIs
StatusPublished - 25 Jan 2013

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plasmons
graphene
nonlinearity
Maxwell equation
luminous intensity
magnetic permeability
perturbation
conductivity
expansion
diffraction

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Nonlinear graphene plasmonics : Amplitude equation for surface plasmons. / Gorbach, A.V.

In: Physical Review A: Atomic, Molecular, and Optical Physics, Vol. 87, No. 1, 013830, 25.01.2013.

Research output: Contribution to journalArticle

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