title: Femtosecond pulse propagation near a two-photon transition in a semiconductor quantum-dot waveguide.
abstract: We have studied femtosecond pulse propagation in CdS quantum-dot-doped waveguides produced by the solgel and ion-exhange methods. The observed two-photon absorption and asymmetric spectral modulation of the transmitted pulses are explained by our theoretical model, which incorporates a near-resonant two-photon transition.
authors.forename: P T
authors.initials: PT
authors.lastname: Guerreiro
authors.forename: S G
authors.initials: SG
authors.lastname: Lee
authors.forename: A S
authors.initials: AS
authors.lastname: Rodrigues
authors.forename: Y Z
authors.initials: YZ
authors.lastname: Hu
authors.forename: E M
authors.initials: EM
authors.lastname: Wright
authors.forename: S I
authors.initials: SI
authors.lastname: Najafi
authors.forename: J
authors.initials: J
authors.lastname: Mackenzie
authors.forename: N
authors.initials: N
authors.lastname: Peyghambarian