Open AccessLow-scattering surface plasmon refraction with isotropic materials
Author(s) -
Evgeni A. Bezus,
Leonid L. Doskolovich,
Nikolay L. Kazanskiy
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.013547
Subject(s) - optics , plasmon , scattering , surface plasmon , surface plasmon polariton , materials science , fresnel equations , isotropy , light scattering , refractive index , refraction , forward scatter , planar , physics , computer graphics (images) , computer science
We show theoretically and numerically that a planar structure consisting of two isotropic dielectric layers can be used to minimize parasitic scattering of surface plasmon polaritons for arbitrary incidence angle. The average scattering losses are reduced by an order-of-magnitude down to 1-3%. The surface plasmon refraction with the scattering suppression can be accurately described by an analytical model based on the Fresnel equations. The proposed approach can be used for the design of plasmonic lenses, reflectors, plasmonic crystals and plasmonic laser cavities.