title: Single-slit split-ring resonators at optical frequencies: limits of size scaling.
abstract: We present magnetic metamaterials composed of 35 nm minimum feature-size gold split-ring resonators with a fundamental magnetic resonance at a wavelength of 900 nm. Corresponding calculations reveal excellent agreement with the experiments and show that the limits of size scaling have been reached.
authors.affiliation: Institut für Angewandte Physik and DFG-Center for Functional Nanostructures(CFN) Universität Karlsruhe, Germany. matthias.klein@physik.uni-karlsruhe.de
authors.forename: M W
authors.initials: MW
authors.lastname: Klein
authors.forename: C
authors.initials: C
authors.lastname: Enkrich
authors.forename: M
authors.initials: M
authors.lastname: Wegener
authors.forename: C M
authors.initials: CM
authors.lastname: Soukoulis
authors.forename: S
authors.initials: S
authors.lastname: Linden