10.6084/m9.figshare.1012333.v1
H Dong
C Conti
A Marini
F Biancalana
(a) Soliton profiles of the fundamental mode (<em>n</em> = 0) and two higher order modes (<em>n</em> = 1 and <em>n</em> = 2) as a function of dimensionless radius <em>R</em>, for <em>q</em> = −0.7
2013
IOP Publishing
function
graphene
2 D
soliton
figure
Soliton profiles
approach
abstract
tunable
frequency
response
material
massless Dirac fermions
conical dispersion
same
order modes
nonlinearity
nonlinear
THz frequencies
dimensionless radius R
Metamaterial
3 D plots
intraband
2013-07-09 00:00:00
article
https://iop.figshare.com/articles/_a_Soliton_profiles_of_the_fundamental_mode_em_n_em_0_and_two_higher_order_modes_em_n_em_1_and_em_n_/1012333
<p><strong>Figure 3.</strong> (a) Soliton profiles of the fundamental mode (<em>n</em> = 0) and two higher order modes (<em>n</em> = 1 and <em>n</em> = 2) as a function of dimensionless radius <em>R</em>, for <em>q</em> = −0.7. (b) Same as (a), but for <em>q</em> = −0.1. (c), (d) 3D plots of the fundamental and the second-order soliton of (a), (b), respectively.</p> <p><strong>Abstract</strong></p> <p>We propose an electrically tunable graphene-based metamaterial that shows a large nonlinear optical response at THz frequencies. The responsible nonlinearity comes from the intraband current, which we are able to calculate analytically. We demonstrate that the proposed metamaterial supports stable 2D spatial solitary waves. Our theoretical approach is not restricted to graphene, but can be applied to all materials exhibiting a conical dispersion supporting massless Dirac fermions.</p>