Shi Li, Li Jing, Tao Tao, Wu Xiaoping
Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, China.
Appl Opt. 2012 Sep 10;51(26):6398-402. doi: 10.1364/ao.51.006398.
In this paper, the influence of radially higher index p of Laguerre-Gaussian (LG) beams on the rotation of nanowires is studied. Radially higher-order LG beams are produced by computer-generated holograms, which are displayed on a spatial light modulator. A series of experiments on manipulating ZnO nanowires was performed on our holographic optical tweezers platform. The experiments demonstrated that radially higher-order LG beams could effectively rotate nanowires along the innermost bright ring of themselves. Compared with radially low-order LG beams, they have larger torques exerted on nanowires and can make nanowires rotate more quickly.
本文研究了拉盖尔 - 高斯（LG）光束径向高阶指数p对纳米线旋转的影响。径向高阶LG光束由计算机生成的全息图产生，这些全息图显示在空间光调制器上。在我们的全息光镊平台上进行了一系列操纵ZnO纳米线的实验。实验表明，径向高阶LG光束可以有效地使纳米线沿着其最内侧的亮环旋转。与径向低阶LG光束相比，它们对纳米线施加的扭矩更大，能使纳米线旋转得更快。
