从一个本质上是无螺旋的元表面发出的垂直性辐射,该元表面具有异性质连续性的启用
Yuwei Sun1,2, Zhipeng Hu1, Mengqi Liu2,3
1Centre for Optical and Electromagnetic Research, National Engineering Research Center for Optical Instruments, College of Optical Science and Engineering, Zhejiang University, Hangzhou, China.
Nature communications
|January 31, 2026
概括
本质上是无的超表面可以通过操纵异型连续和内平面扰动来产生性发射. 这一突破为极化光和热发射应用提供了新的可能性.
科学领域:
- 光学和光子学 在光学和光子学.
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 产生循环极化辐射对于极化光,激光和旋转电子等应用至关重要.
- 目前的方法通常依赖于性纳米结构,而这些纳米结构是复杂的制造.
- 一个关键的问题是,是否可以在不破平面对称性的情况下产生奇拉辐射.
研究的目的:
- 为了研究从内在无的超表面产生奇拉辐射的产生.
- 引入和利用异质连续的概念作为控制排放偏振的工具.
- 为了证明从无晶元表面的奇拉辐射的实验实现.
主要方法:
- 介绍了"无极形连续体"概念,用于无极形元表面.
- 设计和制造基于的无金属表面.
- 用光有机染料整合元表面,用于排放研究.
主要成果:
- 通过操纵异构连续和内平面扰动,Achiral超表面可以产生奇拉辐射.
- 实验实现了高度的循环极化:0.83对于上升和-0.9对于下降的辐射.
- 在不需要真正的奇拉性或外平面对称性破坏纳米结构的情况下,证明了奇拉辐射.
结论:
- 这项工作挑战了对结构性性在排放偏振中的作用的传统理解.
- 异性质连续体为设计具有量身定制的极化性质的非圆形光学设备提供了一条新的途径.
- 为高性能极化光和热发射装置开辟了道路.
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