Three-Dimensional Electromagnetic Void Space,Physical Review Letters

当前位置： X-MOL 学术 › Phys. Rev. Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Three-Dimensional Electromagnetic Void Space
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-09-17 , DOI: 10.1103/physrevlett.127.123902
Changqing Xu ₁ , Hongchen Chu ₂ , Jie Luo ₃ , Zhi Hong Hang ₃ , Ying Wu ₁ , Yun Lai ₂

Affiliation

Electromagnetic void space is a medium, while geometrically occupying a finite volume of space, optically equivalent to an infinitesimal point, in which electromagnetic waves do not experience any phase accumulation. Here, we report the first realization of three-dimensional (3D) electromagnetic void space by an all-dielectric photonic crystal possessing vanishing permittivity and permeability simultaneously. The 3D electromagnetic void space offers distinctive functionalities inaccessible to its 2D or acoustic counterparts because of the fundamental changes in topology, which comes from the ascension of dimensionality as well as the transverse nature of electromagnetic waves. In particular, we demonstrate, both theoretically and experimentally, that the transmission through such a 3D void space is unaffected by its inner boundaries, but highly sensitive to the outer boundaries. This enables many applications such as the impurity “antidoping” effect, outer-boundary-controlled switching, and 3D perfect wave steering. Our work paves a road toward 3D exotic optics of an optically infinitesimal point.

中文翻译：

三维电磁虚空空间

电磁空隙空间是一种介质，在几何上占据有限体积的空间，在光学上相当于一个无穷小的点，其中电磁波不会经历任何相位累积。在这里，我们报告了通过同时具有消失的介电常数和磁导率的全介电光子晶体首次实现三维 (3D) 电磁空隙空间。3D 电磁空域提供了其 2D 或声学对应物无法访问的独特功能，因为拓扑结构的根本变化来自维度的提升以及电磁波的横向性质。特别是，我们从理论上和实验上证明，通过这种 3D 空隙空间的传输不受其内部边界的影响，但对外部边界高度敏感。这使得许多应用成为可能，例如杂质“抗掺杂”效应、外边界控制切换和 3D 完美波控制。我们的工作为光学无穷小点的 3D 奇异光学铺平了道路。

更新日期：2021-09-17

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11