Open AccessFourier analysis of surface plasmon waves launched from single nanohole and nanohole arrays: unraveling tip-induced effects
Author(s) -
You-Chia Chang,
JungLien Chu,
T. J. Wang,
Ming Lin,
Jyi-Tyan Yeh,
J. K. Wang
Publication year - 2008
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.16.000740
Subject(s) - surface plasmon polariton , optics , surface plasmon , plasmon , surface plasmon resonance , materials science , scattering , fourier transform , localized surface plasmon , physics , nanotechnology , nanoparticle , quantum mechanics
The authors report the investigation of surface plasmon waves (SPW) generated by single nanohole and nanohole arrays. Scattering-type scanning near-field microscopy is used to directly observe near-field distribution. The images after Fourier transformation display characteristic patterns that match with the derived analytic formula. The correspondence helps to identify the role of the scanning tip in generating SPW, making possible of the removal of this tip-induced effect. This study provides a means to perform in-depth investigation on surface plasmon polaritons.