期刊
OPTICS COMMUNICATIONS
卷 446, 期 -, 页码 191-195出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2019.04.077
关键词
Pancharatnam-Berry phase; Vector beam; Vortex beam
类别
资金
- National Natural Science Foundation of China [61805077, 11474089]
- China Postdoctoral Science Foundation [2018M632954]
- Natural Science Foundation of Hunan Province, China [2019JJ50042]
Based on the combined modulation of geometric phase introduced by a metasurface and dynamic phase created by a plano-convex lens, we propose and demonstrate a simple and convenient method to generate perfect vector beams. The metasurface converts an incident Gaussian beam with circular polarization to the higher-order Bessel-Gauss modes. The followed lens realizes the Fourier transformation and produces perfect vortex beam at the focal plane. Furthermore, by controlling the incident polarization, we can realize perfect vector beams with desired polarization distributions. The proposed principle may offer a flexible method to engineer phase and polarization in structured light.
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