期刊
PHYSICAL REVIEW LETTERS
卷 120, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.120.163903
关键词
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资金
- Leverhulme Trust Research Program Grant [RP2013-K-009]
- Qatar National Research Fund [NPRP 8-246-1-060]
In this Letter, we show that it is possible to structure the longitudinal polarization component of light. We illustrate our approach by demonstrating linked and knotted longitudinal vortex lines acquired upon nonparaxially propagating a tightly focused subwavelength beam. The remaining degrees of freedom in the transverse polarization components can be exploited to generate customized topological vector beams.
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