论文标题
使用时间多形的光学镊子对多胶体流体动力学的频镜检测
Stroboscopic detection of multi-colloidal hydrodynamics using time-multiplexed optical tweezers
论文作者
论文摘要
时间划分的多路复用为在短时尺度的光学陷阱中探测多胶体相互作用的有吸引力的机会。在本文中，我们演示了一个频道镜系统，能够以KHz速率进行多个捕获的胶体进行任意控制，并使用几个简单的多胶体实验对其进行验证。我们希望这种方法在研究群体胶体流体动力学和活性胶体系统的研究中将有益，尤其是在需要基于摄像机的位置感应的时间敏感性的情况下。此外，我们的多路复用可以实现对环境异常，形状变形的校准，并从其他颗粒中散射干扰。
Time-division multiplexing presents an attractive opportunity to probe multi-colloidal interactions in optical traps at short time-scales. In this paper, we demonstrate a stroboscopic system capable of arbitrary control of multiple trapped colloids with sensing at kHz rates and validate it using several simple multi-colloidal experiments. We expect this methodology will be of benefit in the study of group colloidal hydrodynamics and systems of active colloids, particularly where a temporal sensitivity beyond that of camera-based position sensing is required. In addition, our multiplexing enables calibration that is robust to environmental anomalies, shape distortions of colloids and scattering interference from other particles.
