Theory of the strong phonon-photon coupling in an optical fiber taper

International audienceIn the last few years, the field of cavity optomechanics, a new branch of physics which focusses on the interaction between light and small mechanical objects, has drawn widespread interest because of fundamental observations such as Rabi oscillations and optomechanically-induced transparency1. Here, we theoretically investigate the interaction between light and a sub-wavelength silica optical fiber and demonstrate that strong phonon-photon coupling can also be achieved under high optical power, giving rise to Rabi oscillations