Abstract
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.
| Original language | English |
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| Pages (from-to) | 1551-1553 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 35 |
| Issue number | 10 |
| DOIs | |
| State | Published - 15 May 2010 |
| Externally published | Yes |