TY - JOUR
T1 - Nonlinear nanofocusing in tapered plasmonic waveguides
AU - Davoyan, Arthur R.
AU - Shadrivov, Ilya V.
AU - Zharov, Alexander A.
AU - Gramotnev, Dmitri K.
AU - Kivshar, Yuri S.
PY - 2010/9/9
Y1 - 2010/9/9
N2 - 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 dimensions.
AB - 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 dimensions.
UR - http://www.scopus.com/inward/record.url?scp=77956505954&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.105.116804
DO - 10.1103/PhysRevLett.105.116804
M3 - Article
SN - 0031-9007
VL - 105
JO - Physical Review Letters
JF - Physical Review Letters
IS - 11
M1 - 116804
ER -