title: Polariton Resonances for Ultrastrong Coupling Cavity Optomechanics in GaAs/AlAs Multiple Quantum Wells.
abstract: Polariton-mediated light-sound interaction is investigated through resonant Brillouin scattering experiments in GaAs/AlAs multiple-quantum wells. Photoelastic coupling enhancement at exciton-polariton resonance reaches 10(5) at 30 K as compared to a typical bulk solid room temperature transparency value. When applied to GaAs based cavity optomechanical nanodevices, this result opens the path to huge displacement sensitivities and to ultrastrong coupling regimes in cavity optomechanics with couplings g(0) in the range of 100 GHz.
authors.affiliation: Institut des Nanosciences de Paris, CNRS UMR 7588, Université Pierre et Marie Curie (UPMC), 75005 Paris, France.
authors.forename: B
authors.initials: B
authors.lastname: Jusserand
authors.affiliation: Ioffe Institute, 194021 St. Petersburg, Russia.
authors.forename: A N
authors.initials: AN
authors.lastname: Poddubny
authors.affiliation: Ioffe Institute, 194021 St. Petersburg, Russia.
authors.forename: A V
authors.initials: AV
authors.lastname: Poshakinskiy
authors.affiliation: Centro Atomico Bariloche and Instituto Balseiro, C.N.E.A., 8400 S. C. de Bariloche, R. N., Argentina.
authors.forename: A
authors.initials: A
authors.lastname: Fainstein
authors.affiliation: Laboratoire de Photonique et de Nanostructures, CNRS UPR 20, 91460 Marcoussis, France.
authors.forename: A
authors.initials: A
authors.lastname: Lemaitre