物理学报Issue(24)：1-9,9.DOI:10.7498/aps.63.244103
多环涡旋光束的实验研究∗
Exp erimental study on multiple-ring vortex b eams
摘要
Abstract
The generation, propagation and application of vortex beams have been hot research topics in recent years. In this paper we introduce the novel multiple-ring vortex beams, including double-ring vortex beams and triple-ring vortex beams, which are generated by the coaxial superposition of multiple Laguerre-Gaussian vortex beams with different topological charge numbers and different waist parameters, and their intensity distribution is of multiple-ring. We study the generation and distribution characteristics of multiple-ring vortex beams theoretically, obtain the computer generated hologram of multiple-ring vortex beams based on conjugate symmetric extension Fourier computer generated holography, and experimentally generate quality multiple-ring vortex beams using a spatial light modulator. Excellent agreement between theoretical and experimental results is observed. The study indicates that each ring of multiple-ring vortex beams carries different orbital angular momentum, and the spatial distribution is independent. The novel multiple-ring vortex beams provide more controllable parameters and more diverse structure distributions, which enable their applications in the fields of micro-manipulation as optical tweezers or optical spanner. Furthermore, they also have potential applications as available encoding tools in optical communication.关键词
涡旋光束/拓扑电荷数/计算全息图/空间光调制器Key words
vortex beam/topological charge/computer-generated hologram/spatial light modulator引用本文复制引用
黄素娟,谷婷婷,缪庄,贺超,王廷云..多环涡旋光束的实验研究∗[J].物理学报,2014,(24):1-9,9.基金项目
国家自然科学基金(批准号:61178088,61235002,61475098)、上海市科技创新行动计划(批准号:14511100100)和上海市教委科研创新基金(批准号:12YZ011)资助的课题.@@@@* Project supported by the National Natural Science Foundation of China (Grant Nos.61178088,61235002,61475098), the Shanghai Science and Technology Innovation Action Plan, China (Grant No.14511100100), and the Innovation Fund of Shanghai Education Committee, China (Grant No.12YZ011) （批准号:61178088,61235002,61475098）
