论文标题
精确的位置 - 可控制的光学捕获和通过单个涡流梁操纵
Precise position- and angular-controllable optical trapping and manipulation via a single vortex-pair beam
论文作者
论文摘要
使用激光束的光学诱捕和操作在许多领域都起着关键作用，包括生物学，原子科学和纳米制作。在这里，我们提出并实验证明了在光学诱捕和操纵中首次使用涡流束。我们成功地通过单个涡流对束同时捕获了两个球形微粒。通过在涡旋束的初始相位平面上调整涡旋的距离距离，可以实现捕获球形微粒的可控制位置控制的操纵。基于涡旋束的特征，作为光扳手，通过旋转初始相结构来实现圆柱微座的高精度可控制的旋转。我们的结果可为捕获微粒提供丰富的控制，并在生物区域以及光学驱动的微型机器或电动机中具有非常重要的应用。
Optical trapping and manipulation using laser beams play a key role in many areas including biology, atomic science, and nanofabrication. Here, we propose and experimentally demonstrate the first use of a vortex-pair beam in optical trapping and manipulation. We successfully trap two spherical microparticles simultaneously by a single vortex-pair beam. Precisely position-controllable manipulation of the trapped spherical microparticles is realized by adjusting the off-axis distance of the vortices on the initial phase plane of the vortex-pair beam. Based on the feature of the vortex-pair beam, as an optical wrench, the high-precision angular-controllable rotation of the cylindrical microrod is achieved by rotating the initial phase structure. Our result provides a rich control on the trapping of microparticles and has greatly important applications in biological area, and optically driven micromachines or motors.
