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DOI | 10.1126/science.aap9859 |
Observation of bulk Fermi arc and polarization half charge from paired exceptional points | |
Zhou, Hengyun1,6; Peng, Chao1,2; Yoon, Yoseob3; Hsu, Chia Wei4; Nelson, Keith A.3; Fu, Liang1; Joannopoulos, John D.1; Soljacic, Marin1; Zhen, Bo5 | |
2018-03-02 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 359期号:6379页码:1009-1012 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | The ideas of topology have found tremendous success in closed physical systems, but even richer properties exist in the more general open or dissipative framework. We theoretically propose and experimentally demonstrate a bulk Fermi arc that develops from non-Hermitian radiative losses in an open system of photonic crystal slabs. Moreover, we discover half-integer topological charges in the polarization of far-field radiation around the bulk Fermi arc. Both phenomena are shown to be direct consequences of the non-Hermitian topological properties of exceptional points, where resonances coincide in their frequencies and linewidths. Our work connects the fields of topological photonics, non-Hermitian physics, and singular optics, providing a framework to explore more complex non-Hermitian topological systems. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426366200036 |
WOS关键词 | PHOTONICS ; SYMMETRY ; LASERS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/198090 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.MIT, Dept Phys, Cambridge, MA 02139 USA; 2.Peking Univ, Dept Elect, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China; 3.MIT, Dept Chem, Cambridge, MA 02139 USA; 4.Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA; 5.Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA; 6.Harvard Univ, Dept Phys, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Zhou, Hengyun,Peng, Chao,Yoon, Yoseob,et al. Observation of bulk Fermi arc and polarization half charge from paired exceptional points[J]. SCIENCE,2018,359(6379):1009-1012. |
APA | Zhou, Hengyun.,Peng, Chao.,Yoon, Yoseob.,Hsu, Chia Wei.,Nelson, Keith A..,...&Zhen, Bo.(2018).Observation of bulk Fermi arc and polarization half charge from paired exceptional points.SCIENCE,359(6379),1009-1012. |
MLA | Zhou, Hengyun,et al."Observation of bulk Fermi arc and polarization half charge from paired exceptional points".SCIENCE 359.6379(2018):1009-1012. |
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