title: On the use of slow light for enhancing waveguide properties.
abstract: On the basis of a general analysis of waveguides containing a dispersive material, we identify conditions under which slow-light propagation may enhance the gain, absorption, or phase change. The enhancement is shown to depend on the slow-light mechanism and the translational symmetry of the waveguide. A combination of material and waveguide dispersion may strongly enhance the control of light speed, e.g., using electromagnetically induced transparency in quantum dots embedded in a photonic crystal waveguide.
authors.affiliation: DTU Fotonik-Department of Photonics Engineering, Technical University of Denmark, Building 343, Kgs. Lyngby, Denmark. jesm@fotonik.dtu.dk
authors.forename: Jesper
authors.initials: J
authors.lastname: Mørk
authors.forename: Torben R
authors.initials: TR
authors.lastname: Nielsen