Nonlinear nanofocusing in tapered plasmonic waveguides
We suggest using tapered waveguides for compensating losses of surface plasmon-polaritons in order to enhance nonlinear effects at the nanoscale. We study nonlinear plasmon self-focusing in tapered metal-dielectric-metal slot waveguides and demonstrate that, by an appropriate choice of the taper angle, we can effectively suppress the mode attenuation achieving stable propagation of a spatial plasmon soliton. For larger tapering angles we observe plasmon-beam nanofocusing in both spatial...[Show more]
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|Source:||Physical Review Letters|
|01_Davoyan_Nonlinear_nanofocusing_in_2010.pdf||431.16 kB||Adobe PDF||Request a copy|
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