Switchable waveguiding in two liquid-crystal-filled photonic crystal fibers.
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.
Lorenz
Alexander
A
Department of Chemistry, University of Paderborn, Warburger Strasse 100, 33098 Paderborn, Germany.
Schuhmann
Rolf
R
Kitzerow
Heinz-Siegfried
HS