arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.12900quant-phcond-mat.mes-hallphysics.optics
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光子晶体波导中的光-力耦合

Coupling of Light and Mechanics in a Photonic Crystal Waveguide

J. -B. Béguin, Z. Qin, X. Luan, H. J. Kimble

摘要:

报道了光子晶体波导(PCW)热驱动横向振动的观测结果。PCW由两个平行的纳米梁组成,梁之间具有240 nm的真空间隙。模型的开发和验证的转导光束运动的相位和振幅调制的弱光学探针传播的导模(GM)的PCW的探针频率远离和附近的电介质带边。由于我们的PCW已被设计用于近场原子捕获,本研究提供了一个基础,评估可能的有害影响的热运动对光学原子陷阱附近的PCW表面。长期目标是实现振动的单个声子与在PCW的GM中传播的单个光子之间的强原子介导的联系,从而实现具有原子、光子和声子的量子水平的光力学。这里报道的实验和模型为评估这些目标提供了基础,包括在标准量子极限(SQL)下感测机械运动。

英文摘要:

Observations of thermally driven transverse vibration of a photonic crystal waveguide (PCW) are reported. The PCW consists of two parallel nanobeams with a 240 nm vacuum gap between the beams. Models are developed and validated for the transduction of beam motion to phase and amplitude modulation of a weak optical probe propagating in a guided mode (GM) of the PCW for probe frequencies far from and near to the dielectric band edge. Since our PCW has been designed for near-field atom trapping, this research provides a foundation for evaluating possible deleterious effects of thermal motion on optical atomic traps near the surfaces of PCWs. Longer term goals are to achieve strong atom-mediated links between individual phonons of vibration and single photons propagating in the GMs of the PCW, thereby enabling opto-mechanics at the quantum level with atoms, photons, and phonons. The experiments and models reported here provide a basis for assessing such goals, including sensing mechanical motion at the Standard Quantum Limit (SQL).

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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