在光连续体中的尺度拓光子嵌套元晶体和 skyrmion 表面状态
Biao Yang1,2,3, Qinghua Guo4, Dongyang Wang5
1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China. yangbiaocam@nudt.edu.cn.
Nature materials
|June 22, 2023
概括
尺度拓光子学简化了发现3D拓电磁系统. 这种新方法使用嵌套的元材料,使实际应用的亮表面状态成为可能.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 电磁主义 电磁主义
背景情况:
- 拓光子学研究正在扩大,但由于复杂的电磁波行为,3D系统具有挑战性.
- 光的矢量性质导致难以分散带,表面模式具有低质量因子 (Q因子).
研究的目的:
- 引入标量拓光子学,以简化3D拓电磁系统的发现.
- 为了克服与矢量电磁波和低Q表面模式相关的挑战.
主要方法:
- 提出了标量拓光子学概念.
- 使用嵌套的超晶体配置与连接的同轴波导进行实验验证.
主要成果:
- 证明了标量波形带分散,简化了对光子拓相的搜索.
- 观察到表面状态的电场分布,形成光内明亮的表面带.
- 达到适合实际应用的暴露拓表面状态.
结论:
- 尺度拓光子学为发现和利用3D拓电磁系统提供了更容易获得的途径.
- 嵌套的超晶体设计使得强大的,高质量的拓表面状态,并有可能用于现实世界的应用.
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