光学
拓扑量子数
旋涡
物理
梁(结构)
俘获
光学镊子
激光束
极化(电化学)
鬼影成像
涡流
波前
衍射
空气束
光束
贝塞尔光束
光轴
高斯光束
激光器
生态学
量子力学
生物
热力学
作者
Ziyang Chen,Daomu Zhao
出处
期刊:Optics Letters
[The Optical Society]
日期:2012-04-04
卷期号:37 (8): 1286-1286
被引量:75
摘要
We propose a method for generating focal beams with special intensity distributions using radially polarized vortex beams in a 4Pi configuration. A spherical dark-hollow beam and hollow beam array can be obtained by vortex beams with topological charge of m=1. A dark channel can be generated using vortex beams with topological charge of m=2. The length of the well-defined hollow beam array and the dark channel is about 30λ. These interesting beams are useful in optical trapping and manipulation.
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