Nonlinear nanofocusing in tapered plasmonic waveguides
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Davoyan, Artur; Shadrivov, Ilya; Zharov, Alexander; Gramotnev, Dmitri; Kivshar, Yuri
Description
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]
Collections | ANU Research Publications |
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Date published: | 2010 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/52400 |
Source: | Physical Review Letters |
DOI: | 10.1103/PhysRevLett.105.116804 |
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