title: Surface-plasmon enhanced optical activity in two-dimensional metal chiral networks.
abstract: We investigated the optical properties of a novel chiral metamaterial; two-dimensional metal chiral networks formed from metal ribbons deposited on a dielectric substrate. For zeroth-order transmitted light, sharp optical resonances were observed at spectral positions, which are determined by the surface plasmon resonance frequencies of the periodic metal structures. The experimental results are in excellent agreement with numerical calculations.
authors.affiliation: Photon Science Center, The University of Tokyo, Tokyo, Japan.
authors.forename: Kuniaki
authors.initials: K
authors.lastname: Konishi
authors.forename: Benfeng
authors.initials: B
authors.lastname: Bai
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Toya
authors.forename: Jari
authors.initials: J
authors.lastname: Turunen
authors.forename: Yuri P
authors.initials: YP
authors.lastname: Svirko
authors.forename: Makoto
authors.initials: M
authors.lastname: Kuwata-Gonokami