利用空间模式分选器实现机械谐振器的多模辐射压力驱动
Multimode radiation pressure actuation of a mechanical resonator using a spatial mode sorter
- Wyant College of Optical Sciences, University of Arizona（亚利桑那大学怀雅特光学学院）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本文利用空间模式分选器产生的动态光，实现了对纳米机械膜的辐射压力驱动，并展示了多模反馈冷却近简并模式，为量子光力学奠定基础。
AI中文摘要：
多模光机散射在自由空间成像协议中普遍存在，但其辐射压力对应物在扩展物体上难以探测。本文利用空间模式解复用器（SPADE）产生的动态结构化光，演示了纳米机械膜的辐射压力驱动。通过单模和双模照明，我们直接成像了由膜运动介导的厄米-高斯（HG）模式间的位置依赖耦合。作为应用，我们利用多模辐射压力反馈同时冷却两个近简并的膜模式。我们的结果适用于多种机械系统，并为基于SPADE的量子光力学铺平了道路。
英文摘要：
Multimode optomechanical scattering is ubiquitous in free-space imaging protocols, but its radiation pressure counterpart is challenging to detect with extended objects. Here we demonstrate radiation pressure actuation of a nanomechanical membrane using dynamically structured light from a spatial mode demultiplexer (SPADE). Using single- and two-mode illumination, we directly image the position-dependent intermodal coupling between Hermite-Gauss (HG) modes as mediated by the membrane's motion. As an application, we use multimode radiation pressure feedback to simultaneously cool two nearly degenerate membrane modes. Our results are applicable to diverse mechanical systems and serve as a stepping stone to SPADE-based quantum optomechanics.
