Open AccessLight transmission through a high index dielectric hole in a metal film surrounded by surface corrugations
Author(s) -
Juuso Olkkonen,
Kari Kataja,
Dennis G. Howe
Publication year - 2006
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.14.011506
Subject(s) - materials science , optics , dielectric , groove (engineering) , transmission coefficient , transmission (telecommunications) , total internal reflection , refractive index , extraordinary optical transmission , optoelectronics , surface plasmon polariton , surface plasmon , physics , telecommunications , plasmon , computer science , metallurgy
We analyze transmission of a normally incident plane wave through a 100nm diameter hole in a silver film that is filled with a high index dielectric and is surrounded by 300nm wide surface grooves. Specifically, we study the dependency of the transmission efficiency on the number of grooves, groove depth, and the horizontal distance between the groove and the central hole. We observe that the investigated structure exhibits over five orders of magnitude larger transmission efficiency versus a single hole without the dielectric filling.