Self-focusing and spatial plasmon-polariton solitons.
We study nonlinear propagation of surface plasmon polaritons along an interface between metal and nonlinear Kerr dielectric. We demonstrate numerically self-focusing of a plasmon beam at large powers and the formation of slowly decaying spatial soliton in the presence of losses. We develop an analytical model for describing the evolution of spatial plasmon-solitons and observe a good agreement with numerical results.
Davoyan
Arthur R
AR
Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, ACT, Australia. ard124@physics.anu.edu.au
Shadrivov
Ilya V
IV
Kivshar
Yuri S
YS
D000465:Algorithms; D003198:Computer Simulation; D004867:Equipment Design; D008280:Magnetics; D008962:Models, Theoretical; D055095:Optics and Photonics; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000379:methods*