2012/11/30 by Talitha Weiss, Christoph Bruder, Andreas Nunnenkamp · 4 citations
Physics and Astronomy · #Force Microscopy Techniques and Applications #Mechanical and Optical Resonators #cond-mat.mes-hall #physics.optics #quant-ph #stochastic dynamics and bifurcation
paper · pdf · doi:10.1088/1367-2630/15/4/045017
published as New J. Phys. 15, 045017 (2013) · 21 pages, 7 figures
openalex publication_date 2013/04/23 · arxiv created 2013/05/18 · arxiv updated 2013/05/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this paper, we study cavity optomechanical systems in which the position of a mechanical oscillator modulates both the resonance frequency (dispersive coupling) and the linewidth (dissipative coupling) of a cavity mode. Using a quantum noise approach, we calculate the optical damping and the optically induced frequency shift. We find that dissipatively coupled systems feature two parameter regions providing amplification and two parameter regions providing cooling. To investigate the strong-coupling regime, we solve the linearized equations of motion exactly and calculate the mechanical and optical spectra. In addition to signatures of normal-mode splitting that are similar to the case of purely dispersive coupling, the spectra contain a striking feature that we trace back to the Fano line shape of the force spectrum. Finally, we show that purely dissipative coupling can lead to optomechanically induced transparency which will provide an experimentally convenient way of observing normal-mode splitting.