Abstract
We study nonlinear propagation of electromagnetic waves in two closely spaced graphene layers and demonstrate that this double-layer graphene waveguide can operate as an efficient nonlinear optical coupler for both continuous plasmons and for subwavelength spatial optical plasmon solitons. We analyze the nonlinearity-induced effects of light localization and symmetry breaking in such a graphene coupler, and predict that the interlayer power-dependent coupling provides a mechanism for optical beam control and manipulation at realistic input power levels.
Original language | English |
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Article number | 045443 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 88 |
Issue number | 4 |
DOIs | |
Publication status | Published - 31 Jul 2013 |