量子电子学报2012，Vol.29Issue(2)：153-164,12.DOI:10.3969/j.issn.1007-5461.2012.02.005
辐射压力诱导强耦合光机械腔中的简正模式分裂和冷却
Normal mode splitting and cooling induced by radiation pressure in strong coupling optomechanical cavity
摘要
Abstract
A model describing optomechanical dynamics via radiation-pressure coupling with a driven optical cavity was investigated by a linearized quantum Langevin equation under resolved sideband regime.Both the movable mirror and output field present the normal mode splitting with increasing of the input laser power and the results approach the experiment very well.The effective mechanical damping and resonance frequency shift are derived.The redshift sideband leads to cooling of the mechanical oscillator and the blueshift motional sideband results in amplification.Furthermore,an approximation scheme is introduced to analyze cooling of the mechanical oscillator.Since both the normal mode splitting and cooling require working in the resolved sideband regime,whether the normal mode splitting influence cooling of the mirror is considered.Meanwhile,the key factors that dominate the ground state cooling are also discussed.关键词
量子光学/光机械腔/辐射压力/简正模式分裂/冷却Key words
quantum optics/optomechanical cavity/radiation pressure/normal mode splitting/cooling分类
数理科学引用本文复制引用
陈华俊,米贤武..辐射压力诱导强耦合光机械腔中的简正模式分裂和冷却[J].量子电子学报,2012,29(2):153-164,12.基金项目
National Natural Science Foundation of China (10647132) （10647132）
