Graphene supports the propagation of subwavelength optical solitons

Nonlinear propagation of light in a graphene mono- layer is studied theoretically. It is shown how the large intrin- sic nonlinearity of graphene at optical frequencies enables the formation of quasi one-dimensional self-guided beams (spatial solitons) featuring subwavelength widths at moderate electric- field peak intensities. A novel class of nonlinear self-confined modes resulting from the hybridization of surface plasmon po- laritons with graphene optical solitons is also demonstrated.

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