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arXiv 1112.6002quant-phcond-mat.mes-hallphysics.optics
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光学腔中倾斜膜的可调谐线性和二次光机械耦合:理论和实验

Tunable linear and quadratic optomechanical coupling for a tilted membrane within an optical cavity: theory and experiment

M. Karuza, M. Galassi, C. Biancofiore, C. Molinelli, R. Natali, P. Tombesi, G. Di Giuseppe, D. Vitali

摘要:

我们提出了一个实验研究的光学机械系统形成的振动薄半透明膜内的高精细光学腔。我们表明,光学腔模式和振动模式的膜之间的耦合可以通过改变膜的位置和方向进行调谐。特别是,我们证明了一个大的二次色散光机械耦合对应于避免交叉弱耦合在膜表面的散射光腔模式。用腔本征模的一阶微扰处理很好地解释了实验结果。

英文摘要:

We present an experimental study of an optomechanical system formed by a vibrating thin semi-transparent membrane within a high-finesse optical cavity. We show that the coupling between the optical cavity modes and the vibrational modes of the membrane can be tuned by varying the membrane position and orientation. In particular we demonstrate a large quadratic dispersive optomechanical coupling in correspondence with avoided crossings between optical cavity modes weakly coupled by scattering at the membrane surface. The experimental results are well explained by a first order perturbation treatment of the cavity eigenmodes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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