光中的4D拓扑纹理
4D topological textures in light
AI总结:
本文提出了非傍轴光学晶格中的4D拓扑纹理,该结构由五个平面波构建,可通过高数值孔径透镜聚焦时变光束在自由空间中实验实现。
摘要:
我们提出了(准)单色非傍轴光学晶格中的4D拓扑纹理,其包含3D空间中所有椭圆率和取向组合的所有可能偏振椭圆。这些场跨越非傍轴偏振空间(复射影平面)及特定时空区域内的4-球面,形成4D skyrmionic结构。它们由五个相对振幅绝热变化的平面波构建,可通过用高数值孔径透镜聚焦时变光束在自由空间中实验实现。
英文摘要:
We present 4D topological textures in (quasi)monochromatic nonparaxial optical lattices that contain all possible polarization ellipses with every combination of ellipticity and orientation in 3D space. These fields span the nonparaxial polarization space (a complex projective plane) and a 4-sphere within specific spatiotemporal regions, forming 4D skyrmionic structures. Constructed from five plane waves with adiabatically varying relative amplitudes, they are experimentally realizable in free space by focusing a temporally variant beam with a high numerical aperture lens.
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