title: Photonic crystal waveguides with semi-slow light and tailored dispersion properties.
abstract: We demonstrate a concept for tailoring the group velocity and dispersion properties for light propagating in a planar photonic crystal waveguide. By perturbing the holes adjacent to the waveguide core it is possible to increase the useful bandwidth below the light-line and obtain a photonic crystal waveguide with either vanishing, positive, or negative group velocity dispersion and semi-slow light. We realize experimentally a silicon-on-insulator photonic crystal waveguide having nearly constant group velocity ~c(0)/34 in an 11-nm bandwidth below the silica-line.
authors.forename: Lars H
authors.initials: LH
authors.lastname: Frandsen
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Lavrinenko
authors.forename: Jacob
authors.initials: J
authors.lastname: Fage-Pedersen
authors.forename: Peter I
authors.initials: PI
authors.lastname: Borel