Max Ludwig, Amir H. Safavi-Naeini, Oskar Painter, Florian Marquardt
In cavity optomechanics, nanomechanical motion couples to a localized optical
mode. The regime of single-photon strong coupling is reached when the optical
shift induced by a single phonon becomes comparable to the cavity linewidth. We
consider a setup in this regime comprising two optical modes and one mechanical
mode. For mechanical frequencies nearly resonant to the optical level
splitting, we find the photon-phonon and the photon-photon interactions to be
significantly enhanced. In addition to dispersive phonon detection in a novel
regime, this offers the prospect of optomechanical photon measurement. We study
these QND detection processes using both analytical and numerical approaches.
View original:
http://arxiv.org/abs/1202.0532
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