title: Enhanced infrared transmission through subwavelength coaxial metallic arrays.
abstract: We report the observation of enhanced near-infrared transmission through arrays of subwavelength coaxial metallic structures compared with that through comparable diameter hole arrays as a result of localized electromagnetic modes supported by the complex coaxial unit cell. Polarization and angle-dependent transmission measurements clearly demonstrate the coupling between this localized mode and delocalized surface plasmon modes. A generalized, multiple discrete states Fano line shape provides a good fit to the experimental results.
authors.affiliation: Center for High Technology Materials and Electrical and Computer Engineering Department, University of New Mexico, Albuquerque, New Mexico 87106, USA.
authors.forename: Wenjun
authors.initials: W
authors.lastname: Fan
authors.forename: Shuang
authors.initials: S
authors.lastname: Zhang
authors.forename: Babar
authors.initials: B
authors.lastname: Minhas
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Malloy
authors.forename: S R J
authors.initials: SR
authors.lastname: Brueck