2014/05/05 by G. Rozas, A. E. Bruchhausen, A. Fainstein +2
Physics and Astronomy · #cond-mat.mes-hall #physics.optics
paper · pdf · doi:10.1103/physrevb.90.201302
published as Phys. Rev. B 90, 201302(R) (2014) · 6 pages, 4 figures
arxiv created 2014/05/05 · arxiv updated 2014/11/19
Resonant photoelastic coupling in semiconductor nanostructures opens new perspectives for strongly enhanced light-sound interaction in optomechanical resonators. One potential problem, however, is the reduction of the cavity Q-factor induced by dissipation when the resonance is approached. We show in this letter that cavity-polariton mediation in the light-matter process overcomes this limitation allowing for a strongly enhanced photon-phonon coupling without significant lifetime reduction in the strongly-coupled regime. Huge optomechanical coupling factors in the PetaHz/nm range are envisaged, three orders of magnitude larger than the backaction produced by the mechanical displacement of the cavity mirrors.