title: Optical properties of a metal film perforated with coaxial elliptical hole arrays.
abstract: 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.
authors.affiliation: National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China.
authors.forename: Shan
authors.initials: S
authors.lastname: Wu
authors.forename: Lin
authors.initials: L
authors.lastname: Zhou
authors.forename: Yu-min
authors.initials: YM
authors.lastname: Wang
authors.forename: Guo-Dong
authors.initials: GD
authors.lastname: Wang
authors.forename: Qian-jin
authors.initials: QJ
authors.lastname: Wang
authors.forename: Cheng-ping
authors.initials: CP
authors.lastname: Huang
authors.forename: Yong-yuan
authors.initials: YY
authors.lastname: Zhu