title: Large-area magnetic metamaterials via compact interference lithography.
abstract: Magnetic metamaterials with magnetic-dipole resonances around 1.2-mum wavelength are fabricated using an extremely compact and robust version of two- or three-beam interference lithography for 1D and 2D structures, respectively. Our approach employs a single laser beam at 532- nm wavelength impinging onto a suitably shaped dielectric object (roof-top prism or pyramid) - bringing the complexity of fabricating magnetic metamaterials down to that of evaporating usual dielectric/metallic coatings.The measured optical spectra agree well with theory; the retrieval reveals a negative magnetic permeability. Importantly, the large-scale sample homogeneity is explicitly demonstrated by optical experiments.
authors.forename: Nils
authors.initials: N
authors.lastname: Feth
authors.forename: Christian
authors.initials: C
authors.lastname: Enkrich
authors.forename: Martin
authors.initials: M
authors.lastname: Wegener
authors.forename: Stefan
authors.initials: S
authors.lastname: Linden