Observation of localized surface plasmons in spatially controlled array structures.
We observed the reflectance spectra of three different nano-scale array structures of Au-coated silicon nanorods. The trends of the reflectance spectra indicate that the localized surface plasmon modes can be spatially controlled by manipulating geometric parameters, namely the lattice constants of the array. In addition, the experimental results were compared with 2D numerical simulations based on the finite element method. Satisfactory agreement between the experimental observations and numerical results was obtained.
Chou
J W
JW
Department of Electrophysics, National Chiao Tung University, Hsinchu 30050, Taiwan.
Lin
Kao-Chin
KC
Lee
Yao-Jen
YJ
Yuan
Chi-Tsu
CT
Hsueh
Fu-Kuo
FK
Shih
Hsun-Chuan
HC
Fan
Wen-Chung
WC
Luo
Chih-Wei
CW
Lin
Ming-Chieh
MC
Chou
Wu-Ching
WC
Chuu
Der-San
DS