title: Polariton condensation in a one-dimensional disordered potential.
abstract: We study the coherence and density modulation of a nonequilibrium exciton-polariton condensate in a one-dimensional valley with disorder. By means of interferometric measurements we evidence a modulation of the first-order coherence function and we relate it to a disorder-induced modulation of the condensate density, that increases as the pump power is increased. The nonmonotonic spatial coherence function is found to be the result of the strong nonequilibrium character of the one-dimensional system, in the presence of disorder.
authors.affiliation: Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland. francesco.manni@epfl.ch
authors.forename: F
authors.initials: F
authors.lastname: Manni
authors.forename: K G
authors.initials: KG
authors.lastname: Lagoudakis
authors.forename: B
authors.initials: B
authors.lastname: Pietka
authors.forename: L
authors.initials: L
authors.lastname: Fontanesi
authors.forename: M
authors.initials: M
authors.lastname: Wouters
authors.forename: V
authors.initials: V
authors.lastname: Savona
authors.forename: R
authors.initials: R
authors.lastname: André
authors.forename: B
authors.initials: B
authors.lastname: Deveaud-Plédran