Nonlocal ponderomotive nonlinearity in plasmonics.
نویسندگان
چکیده
We analyze an inherent nonlinearity of surface plasmon polaritons at the interface of Fermi-Dirac metal plasma, stemming from the depletion of electron density in high-intensity regions. The derived optical nonlinear coefficients are comparable with the experimental values for metals. We calculate the dispersion relations for the nonlinear propagation of high-intensity surface plasmon polaritons, predicting a nonlinearity-induced cutoff and vanishing group velocity.
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عنوان ژورنال:
- Optics letters
دوره 35 10 شماره
صفحات -
تاریخ انتشار 2010