发表机构
ETH Zurich（苏黎世联邦理工学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文展示了一种小型化混合电光超透镜平台，通过高数值孔径超透镜和电学主动反馈实现真空悬浮粒子的冷却至低声子占据数，并排除电场噪声影响，为片上量子悬浮光力学奠定基础。
AI 中文摘要
量子领域的先进悬浮光力学需要复杂的量子工程协议，这些协议在更短的长度和时间尺度上运行，要求对光学和电势进行更强的控制。集成芯片级平台为实现这种控制提供了自然途径。在此，我们展示了利用小型化混合电光超透镜在真空中的光学悬浮。运动控制通过高数值孔径超透镜结合使用平面电极的电学主动反馈实现，从而能够冷却到低声子占据数。再加热测量使我们能够排除电场噪声的任何显著影响；这对于未来开发靠近表面运行的片上悬浮平台是一个令人鼓舞的结果。这种紧凑的集成平台有助于精确操纵和控制悬浮纳米粒子，同时为利用超光学能力设计复杂光学势场奠定基础，标志着量子悬浮光力学技术的重要进步。
英文摘要
Advanced levitation optomechanics in the quantum regime requires sophisticated quantumengineered protocols operating at shorter length and time scales, demanding an increasing control over both optical and electrical potentials. Integrated chip-scale platforms offer a natural route toward such control. Here, we demonstrate optical levitation in vacuum using a miniaturized hybrid electro-optical metalens. Motion control is achieved using a high numerical aperture metalens combined with electrical active feedback using planar electrodes, enabling cooling to low phonon occupations. Reheating measurements enable us to rule out any significant influence from electric field noise; an encouraging result for the future development of on-chip levitation platforms operating close to surfaces. This compact integrated platform facilitates the precise manipulation and control of levitated nanoparticles while laying the ground toward exploiting the full capacity of metaoptics to engineer complex optical potentials, marking a significant step forward in technologies for quantum levitation optomechanics.
