Haomai Lei, Bin Luo, Jianfei Hu, Jiming Wang, Tong Wu, Youwen Liu
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引用次数: 0
摘要
光学拓扑结构作为一种稳定的空间电磁结构,为光信息处理、传输和存储领域的应用提供了一个新的维度。近年来,人们越来越关注这些空间结构光场。通过反转正交偶极子对的辐射,我们提出了一种在聚焦光场内生成梅隆拓扑结构的方法,同时还研究了梅隆结构沿纵轴的演变。通过引入沿 Z 轴放置的偶极子,我们实现了拓扑中心的精确定位和微调。在高数值孔径物镜(NA = 0.95)的作用下,Meron 的稳定性得到了有效证明。
Creation and manipulation of optical Meron topologies in tightly focused electromagnetic field
The optical topology, which serves as a stable spatial electromagnetic structure, offers a new dimension for applications in the field of optical information processing, transmission, and storage. In recent years, there has been an increasing focus on these spatially structured light fields. By reversing the radiation of orthogonal dipole pairs, we propose an approach to generate Meron topologies within the focused light field while also investigating the evolution of the Meron structure along the longitudinal axis. Through introducing a dipole placed along the z-axis, we achieve precise positioning and fine adjustment of the topological center. The stability of Meron under a high numerical aperture objective lens (NA = 0.95) can be effectively demonstrated.
期刊介绍:
Journal of Optics publishes new experimental and theoretical research across all areas of pure and applied optics, both modern and classical. Research areas are categorised as:
Nanophotonics and plasmonics
Metamaterials and structured photonic materials
Quantum photonics
Biophotonics
Light-matter interactions
Nonlinear and ultrafast optics
Propagation, diffraction and scattering
Optical communication
Integrated optics
Photovoltaics and energy harvesting
We discourage incremental advances, purely numerical simulations without any validation, or research without a strong optics advance, e.g. computer algorithms applied to optical and imaging processes, equipment designs or material fabrication.