Independent and intensity-adjustable dual-focused vortex beams via a helicity-multiplexing metalens

Qun Hao, Wenli Wang, Yao Hu*, Shaohui Zhang, Shuo Zhang, Yu Zhang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

4 引用 (Scopus)

摘要

Independently tailoring two or more focused vortex beams and controlling their intensity distributions in one device is indispensable in optical trapping and manipulation fields. We propose the phase equation for a helicity-multiplexing metalens generating dual-focused vortex beams based on the propagation phase and geometry phase. The metalens can independently manipulate dual-focused vortex beams, i.e., their focal lengths, lateral displacements, and topological charges could be independently tailored. Moreover, we can adjust their relative focal intensity by modulating the ellipticity of the incident beam. Such metalenses allow for advanced research and applications in trapping and rotating microparticles.

源语言英语
页(从-至)3872-3881
页数10
期刊Optical Materials Express
12
10
DOI
出版状态已出版 - 1 10月 2022

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