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Control of orbital angular momentum with partially coherent vortex beams

Yongtao Zhang, Yangjian Cai, and Greg Gbur

Abstract

We investigate the orbital angular momentum of partially coherent beams which are constructed by a superposition of mutually incoherent vortex modes, each mode having a different beam width and topological charge. It is shown that these simple beams nevertheless provide great flexibility in controlling orbital angular momentum through adjustment of the beam parameters and have significant potential for particle rotation and trapping.

© 2019 Optical Society of America

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