论文标题
动态控制的胶体颗粒的双孔光学潜力
Dynamically controlled double-well optical potential for colloidal particles
论文作者
论文摘要
这项初步研究提出了一种简单的调制方案，可以动态地创建时间平均的光电位，以使用声学调制来捕获胶体颗粒。该方法可访问控制可调双孔电势的实验相关参数。我们显示了实验数据，成功地调节了20-2000 nm范围内的陷阱距离，并讨论在重建捕获粒子数据的时间平均电位时引起的情况。这是研究动态调制的光学电位中胶体颗粒的第一步，以探索介质系统和小型热机械机器的随机热力学。
This preliminary study presents a simple modulation scheme to dynamically create time-averaged optical potentials to trap colloidal particles using acousto-optical modulation. The method provides access to control experimentally relevant parameters of a tunable double-well potential. We show experimental data successfully adjusting the trapping distance in the range 20-2000 nm and discuss situations arising when reconstructing time-averaged optical potentials from trapped particle data. This is the first step towards studying colloidal particles in dynamically modulated optical potentials to explore the stochastic thermodynamics of mesoscopic systems and small-scale thermo-mechanical machines.
