Generation of perfect vector beams based on the combined modulation of dynamic and geometric phases
Generation of perfect vector beams based on the combined modulation of dynamic and geometric phases
复制标题
基于动态和几何相位组合调制的完美矢量光束的生成
DOI:
10.1016/j.optcom.2019.04.077
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发表时间:
2019-09
影响因子:
2.4
通讯作者:
Hailu Luo
中科院分区:
文献类型:
--
作者:
Yougang Ke;Shizhen Chen;Weixing Shu;Hailu Luo
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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