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Self-focusing of femtosecond surface plasmon polaritons

Pusch, Andreas; Shadrivov, Ilya V; Hess, Ortwin; Kivshar, Yuri


We study the propagation of femtosecond pulses in nonlinear metal-dielectric plasmonic waveguiding structures by employing the finite-difference time-domain numerical method. Self-focusing of plasmon pulses is observed for defocusing Kerr-like nonlinearity of the dielectric medium due to normal dispersion. We compare the nonlinear propagation of plasmon pulses along a single metal-dielectric interface with the propagation within a metal-dielectric-metal slot waveguide and observe that nonlinear...[Show more]

CollectionsANU Research Publications
Date published: 2013-01-14
Type: Journal article
Source: Optics express
DOI: 10.1364/OE.21.001121


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