title: Tunable photonic crystal circuits: concepts and designs based on single-pore infiltration.
abstract: We demonstrate that the infiltration of individual pores of certain two-dimensional photonic crystals with liquid crystals and (or) polymers provides an efficient platform for the realization of integrated photonic crystal circuitry. As an illustration of this principle, we present designs for monomode photonic crystal wave-guides and certain functional elements, such as waveguide bends, beam splitters, and waveguide intersections. These devices exhibit very low reflection over broad frequency ranges. In addition, we discuss the inherent tunability of these devices that originates in the tunability of the infiltrated material.
authors.affiliation: Institut für Theorie der Kondensierten Materie, Universität Karlsruhe, 76128 Karlsruhe, Germany. smino@physics.ucf.edu
authors.forename: Sergei F
authors.initials: SF
authors.lastname: Mingaleev
authors.forename: Matthias
authors.initials: M
authors.lastname: Schillinger
authors.forename: Daniel
authors.initials: D
authors.lastname: Hermann
authors.forename: Kurt
authors.initials: K
authors.lastname: Busch