Nonlinear dispersion equation of SPP propagating on a metal film is derived. High-power SPP exhibits "slow light" properties before its cutoff point due to ponderomotive repulsion of conduction electrons from the high-intensity regions.
© 2008 The Optical Society
(230.0230) Optical devices : Optical devices
(230.7390) Optical devices : Waveguides, planar
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
P. Ginzburg, A. Hayat, N. Berkovitch, and M. Orenstein, "Nonlinear Propagation and Slow Light of Surface Plasmon Polaritons due to Ponderomotive Forces," in Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing, OSA Technical Digest (CD) (Optical Society of America, 2008), paper JWD25.
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