Geometrically induced modification of surface plasmons in the optical and telecom regimes.
We demonstrate that the introduction of a subwavelength periodic modulation into a metallic structure strongly modifies the guiding characteristics of the surface plasmon modes supported by the system. Moreover, it is also shown how a new type, to our knowledge, of a tightly confined surface plasmon polariton mode can be created by just milling a periodic corrugation into a metallic ridge placed on top of a metal surface.
Nesterov
M L
ML
Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid,E-28049 Madrid, Spain. nesterovml@gmail.com
Martin-Cano
D
D
Fernandez-Dominguez
A I
AI
Moreno
E
E
Martin-Moreno
L
L
Garcia-Vidal
F J
FJ