Optomechanical sideband cooling of a thin membrane within a cavity
Optomechanical sideband cooling of a thin membrane within a cavity
复制标题
DOI：
10.1088/1367-2630/14/9/095015
复制
发表时间：
2012-09-17
影响因子：
3.3
通讯作者：
Vitali, D.
中科院分区：
文献类型：
--
作者：
Karuza, M.;Molinelli, C.;Vitali, D.
我们提出了一个实验研究的动态反作用冷却的基本振动模式的薄的非透明膜放置在一个高精细光学腔。我们研究了辐射-压力相互作用如何改变振动模式的力学响应，实验结果与朗之万方程描述的耦合动力学一致。实验进行了解决边带制度，我们已经观察到冷却的一个因素约350。我们还观察到与腔模式频率相对于有效膜位置的扩展中的二次项相关联的机械频移，这在其他腔光学机械装置中通常是可忽略的。
We present an experimental study of dynamical back-action cooling of the fundamental vibrational mode of a thin semitransparent membrane placed within a high-finesse optical cavity. We study how the radiation-pressure interaction modifies the mechanical response of the vibrational mode, and the experimental results are in agreement with a Langevin equation description of the coupled dynamics. The experiments are carried out in the resolved sideband regime, and we have observed cooling by a factor of approximate to 350. We have also observed the mechanical frequency shift associated with the quadratic term in the expansion of the cavity mode frequency versus the effective membrane position, which is typically negligible in other cavity optomechanical devices.