Optical properties of a metal film perforated with coaxial elliptical hole arrays.
The optical properties of a metal film perforated with coaxial elliptical hole arrays have been investigated experimentally and a simple analysis model that qualitatively explains the experimental results has been presented. In our structure, two localized excitations, i.e., the short- and long-axis localized surface-plasmon modes of the elliptical nanoparticles or nanoholes can be excited, which couples, respectively, with the surface-plasmon polariton modes and causes different optical response. As a consequence, the transmission features can be manipulated by the polarization state of the incident light.
Wu
Shan
S
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China.
Zhou
Lin
L
Wang
Yu-min
YM
Wang
Guo-Dong
GD
Wang
Qian-jin
QJ
Huang
Cheng-ping
CP
Zhu
Yong-yuan
YY