We demonstrate the nonlinear excitation of surface plasmons by optical four-wave mixing (4WM) in the Kretschmann configuration. We observe characteristic plasmon dips, which we explain in terms of destructive interference between plasmon fields.
© 2008 The Optical Society
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
L. Novotny and S. Palomba, "Nonlinear Excitation of Surface Plasmons," 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 MThA7.
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