论文标题
光和力学在光子晶体波导中的耦合
Coupling of Light and Mechanics in a Photonic Crystal Waveguide
论文作者
论文摘要
报道了光子晶体波导（PCW）热驱动的横向振动的观察。 PCW由两个平行的纳米梁组成，在梁之间具有240 nm真空间隙。开发并验证了梁运动向相位的相位转导向相位的弱光学探针在PCW的引导模式（GM）中转导的探针频率远离介电带边缘的探针频率。由于我们的PCW是为近场原子捕获而设计的，因此这项研究为评估热运动对PCW表面附近光原子陷阱的可能有害影响提供了基础。长期目标是实现振动的单个声子与PCW的GMS传播的单个光子之间的牢固介导的链接，从而在量子水平上使用原子，光子和声子在量子水平上实现光学力学。此处报告的实验和模型为评估此类目标提供了基础，包括以标准量子极限（SQL）进行机械运动。
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).
