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Journal Article

Large Optical Nonlinearity of Surface Plasmon Modes on Thin Gold Films


Witthaut,  Dirk
Max Planck Research Group Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Huck, A., Witthaut, D., Kumar, S., Sørensen, A. S., & Andersen, U. L. (2013). Large Optical Nonlinearity of Surface Plasmon Modes on Thin Gold Films. Plasmonics, 8, 1597-1605. doi:10.1007/s11468-013-9576-0.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-0FD9-C
We investigate the optical nonlinear effects of a long-range surface plasmon polariton mode propagating on a thin gold film. These effects may play a key role in the design of future nanophotonic circuits as they allow for the realization of active plasmonic elements. We demonstrate a significant enhancement of the transmission on a timescale below a millisecond as well as a phase shift exceeding 2π already for modest peak powers of 150 mW. On the contrary, slow effects suppress the transmission on a millisecond timescale.