title: Switchable waveguiding in two liquid-crystal-filled photonic crystal fibers.
abstract: Switchable waveguiding is investigated in two liquid-crystal-filled photonic crystal fibers with a solid core using the nematic liquid-crystal mixture E7 under planar and homeotropic anchoring conditions. Addressing experiments using ac voltages show polarization-dependent and -independent effects with response times down to a few ms. It is shown that the attenuation spectra of the two liquid-crystal-filled photonic crystal fibers can be changed dramatically by just varying the boundary conditions. Electromagnetic field simulations are presented, which are in good agreement with the experimental findings.
authors.affiliation: Department of Chemistry, University of Paderborn, Warburger Strasse 100, 33098 Paderborn, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Lorenz
authors.forename: Rolf
authors.initials: R
authors.lastname: Schuhmann
authors.forename: Heinz-Siegfried
authors.initials: HS
authors.lastname: Kitzerow