Plasmonic gap waveguides allow for subwavelength integration of optical circuitry. A side effect is extraordinarily high field enhancement. Here we present experimental and numeric results, which indicate nonlinear switching in a directional coupler.
© 2012 OSA
A. Kriesch, D. Ploss, J. Wen, P. Banzer, and U. Peschel, "Nonlinear Effects in Subwavelength Plasmonic Directional Couplers," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (Optical Society of America, 2012), paper QTu1F.1.
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