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Generation and motion control of optical multi-vortex 被引量:1

Generation and motion control of optical multi-vortex
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摘要 The generation and propagation dynamics of multiple optical vortices hosted in a Gaussian beam are experimentally demonstrated by use of the computer-generated holography. Fluid-like motions of the multi-vortex beam are observed owing to the helical phase structure. The multi-vortex beam with identical topological charge presents rotation, which can be suppressed by changing the sign of the topological charge alternately. In addition, the transverse motion control of the multi-vortex is proved by inserting an additional vortex. Finally, rotary and stationary vortex lattices with different periodic arrays are experimentally constructed. The results exhibit potential applications in inducing twisted or stable waveguide arrays and new types of optical traps. The generation and propagation dynamics of multiple optical vortices hosted in a Gaussian beam are experimentally demonstrated by use of the computer-generated holography. Fluid-like motions of the multi-vortex beam are observed owing to the helical phase structure. The multi-vortex beam with identical topological charge presents rotation, which can be suppressed by changing the sign of the topological charge alternately. In addition, the transverse motion control of the multi-vortex is proved by inserting an additional vortex. Finally, rotary and stationary vortex lattices with different periodic arrays are experimentally constructed. The results exhibit potential applications in inducing twisted or stable waveguide arrays and new types of optical traps.
出处 《Chinese Optics Letters》 SCIE EI CAS CSCD 2009年第12期1142-1145,共4页 中国光学快报(英文版)
基金 supported by the Northwestern Poly-technical University Foundation for Fundamental Re-search and the Doctorate Foundation of NPU
关键词 Computer generated holography Gaussian beams Motion control Motion planning Topology Computer generated holography Gaussian beams Motion control Motion planning Topology
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