title: Mie plasmon enhanced diffraction of light from nanoporous metal surfaces.
abstract: The diffractive properties of gold films with a periodic lattice of sub-micron voids beneath the surface are investigated. It has been shown that nanoporous metal surfaces exhibit frequency-selective non-dispersive diffraction enhanced by Mie plasmons in nanovoids, which leads to absolute angular tolerance of the diffracted beam intensity that can be useful for a variety of applications covering angle-tolerant optical filters, deflectors, absorbers, and beam splitters. Diffraction spectra are measured and calculated to support these conclusions, showing good qualitative agreement.
authors.forename: Tatiana V
authors.initials: TV
authors.lastname: Teperik
authors.forename: Vyacheslav V
authors.initials: VV
authors.lastname: Popov
authors.forename: F Javier
authors.initials: FJ
authors.lastname: García de Abajo
authors.forename: Tim A
authors.initials: TA
authors.lastname: Kelf
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sugawara
authors.forename: Jeremy J
authors.initials: JJ
authors.lastname: Baumberg
authors.forename: Mamdouh
authors.initials: M
authors.lastname: Abdelsalem
authors.forename: Philip N
authors.initials: PN
authors.lastname: Bartlett