title: A semi-analytical model for the approximation of plasmonic bands in arrays of metal wires in photonic crystal fibers.
abstract: We present a highly efficient semi-analytical and straightforward-to-implement model for the determination of plasmonic band edges of metallic nanowire arrays inside photonic crystal fibers. The model relies on the approximation of the hexagonal unit cell by a circle and using particular boundary conditions, showing an accurate agreement with finite element simulations. The model reduces simulation time by a factor of 100, thus representing an efficient tool for structure design. It further allows the calculation of all relevant modes in the system by slight changes of the entries in a 4 × 4 matrix.
authors.forename: Ron
authors.initials: R
authors.lastname: Spittel
authors.forename: Harmut
authors.initials: H
authors.lastname: Bartelt
authors.forename: Markus A
authors.initials: MA
authors.lastname: Schmidt