Open AccessCoupling of air/metal and substrate/metal surface plasmon polaritons in Au slit arrays fabricated on quartz substrate
Author(s) -
S. H. Kim,
C. M. Lee,
Kwang Jun Ahn,
KiJu Yee
Publication year - 2013
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.21.021871
Subject(s) - surface plasmon polariton , materials science , surface plasmon , optics , substrate (aquarium) , optoelectronics , metal , localized surface plasmon , slit , polariton , wavelength , plasmon , extraordinary optical transmission , coupling (piping) , composite material , physics , oceanography , metallurgy , geology
We report on the coupling of the air/metal mode and the substrate/metal mode surface plasmon polaritons in one-dimensional metallic slit arrays fabricated on a dielectric substrate. Anti-crossing is exhibited at an incident angle where the two independent modes can be resonantly excited at a specific wavelength. The size of the anti-crossing gap was measured while changing the metal thickness.