气候变化领域集成服务门户(CCPortal): Transverse spin dynamics in structured electromagnetic guided waves

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DOI	10.1073/pnas.2018816118
	Transverse spin dynamics in structured electromagnetic guided waves
	Shi P.; Du L.; Li C.; Zayats A.V.; Yuan X.
发表日期	2021
ISSN	00278424
卷号	118 期号:6
英文摘要	Spin-momentum locking, a manifestation of topological properties that governs the behavior of surface states, was studied intensively in condensed-matter physics and optics, resulting in the discovery of topological insulators and related effects and their photonic counterparts. In addition to spin, optical waves may have complex structure of vector fields associated with orbital angular momentum or nonuniform intensity variations. Here, we derive a set of spin-momentum equations which describes the relationship between the spin and orbital properties of arbitrary complex electromagnetic guided modes. The predicted photonic spin dynamics is experimentally verified with four kinds of nondiffracting surface structured waves. In contrast to the one-dimensional uniform spin of a guided plane wave, a two-dimensional chiral spin swirl is observed for structured guided modes. The proposed framework opens up opportunities for designing the spin structure and topological properties of electromagnetic waves with practical importance in spin optics, topological photonics, metrology and quantum technologies and may be used to extend the spin-dynamics concepts to fluid, acoustic, and gravitational waves. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Angular momentum of light; Spin-momentum locking; Spin-orbit coupling; Transverse spin
语种	英语
scopus关键词	article; chirality; electromagnetic radiation; optics
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180746
作者单位	Nanophotonics Research Center, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China; Department of Physics, King's College London, London, WC2R 2LS, United Kingdom; London Centre for Nanotechnology, King's College London, London, WC2R 2LS, United Kingdom
推荐引用方式 GB/T 7714	Shi P.,Du L.,Li C.,et al. Transverse spin dynamics in structured electromagnetic guided waves[J],2021,118(6).
APA	Shi P.,Du L.,Li C.,Zayats A.V.,&Yuan X..(2021).Transverse spin dynamics in structured electromagnetic guided waves.Proceedings of the National Academy of Sciences of the United States of America,118(6).
MLA	Shi P.,et al."Transverse spin dynamics in structured electromagnetic guided waves".Proceedings of the National Academy of Sciences of the United States of America 118.6(2021).