Exceptional points in optics and photonics

光子学 物理 光学
作者
Mohammad‐Ali Miri,Andrea Alù
出处
期刊:Science [American Association for the Advancement of Science]
卷期号:363 (6422) 被引量:1716
标识
DOI:10.1126/science.aar7709
摘要

Exceptional points are branch point singularities in the parameter space of a system at which two or more eigenvalues, and their corresponding eigenvectors, coalesce and become degenerate. Such peculiar degeneracies are distinct features of non-Hermitian systems, which do not obey conservation laws because they exchange energy with the surrounding environment. Non-Hermiticity has been of great interest in recent years, particularly in connection with the quantum mechanical notion of parity-time symmetry, after the realization that Hamiltonians satisfying this special symmetry can exhibit entirely real spectra. These concepts have become of particular interest in photonics because optical gain and loss can be integrated and controlled with high resolution in nanoscale structures, realizing an ideal playground for non-Hermitian physics, parity-time symmetry, and exceptional points. As we control dissipation and amplification in a nanophotonic system, the emergence of exceptional point singularities dramatically alters their overall response, leading to a range of exotic optical functionalities associated with abrupt phase transitions in the eigenvalue spectrum. These concepts enable ultrasensitive measurements, superior manipulation of the modal content of multimode lasers, and adiabatic control of topological energy transfer for mode and polarization conversion. Non-Hermitian degeneracies have also been exploited in exotic laser systems, new nonlinear optics schemes, and exotic scattering features in open systems. Here we review the opportunities offered by exceptional point physics in photonics, discuss recent developments in theoretical and experimental research based on photonic exceptional points, and examine future opportunities in this area from basic science to applied technology.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
6666666666完成签到 ,获得积分10
2秒前
zz完成签到,获得积分10
2秒前
Popeye应助阿胡采纳,获得30
3秒前
4秒前
魁魁完成签到,获得积分20
4秒前
PEKIEOKE发布了新的文献求助30
5秒前
5秒前
无语的凡梦完成签到,获得积分10
6秒前
wanci应助二十四桥明月夜采纳,获得10
7秒前
风清扬应助LaTeXer采纳,获得10
7秒前
leo关闭了leo文献求助
8秒前
推土机爱学习完成签到 ,获得积分10
8秒前
李萍萍发布了新的文献求助10
8秒前
8秒前
fdwang完成签到 ,获得积分10
8秒前
清漪完成签到 ,获得积分10
9秒前
深情安青应助海白采纳,获得10
9秒前
晴栀完成签到,获得积分10
9秒前
hetao286完成签到,获得积分10
10秒前
阿三的风光完成签到 ,获得积分10
10秒前
nature完成签到 ,获得积分10
10秒前
量子星尘发布了新的文献求助10
11秒前
科研狗完成签到 ,获得积分10
12秒前
追光者完成签到,获得积分10
12秒前
HJJHJH发布了新的文献求助10
13秒前
Advance.Cheng发布了新的文献求助10
13秒前
传统的大白完成签到,获得积分10
13秒前
复杂的白秋完成签到,获得积分10
14秒前
14秒前
舒适的平蓝完成签到,获得积分10
15秒前
DAI123完成签到,获得积分10
15秒前
15秒前
阳yang发布了新的文献求助10
15秒前
HIH完成签到 ,获得积分10
16秒前
可靠的寒风完成签到,获得积分10
17秒前
Pan完成签到,获得积分10
17秒前
18秒前
18秒前
18秒前
丢丢丢完成签到,获得积分10
18秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038426
求助须知:如何正确求助?哪些是违规求助? 3576119
关于积分的说明 11374556
捐赠科研通 3305834
什么是DOI,文献DOI怎么找? 1819339
邀请新用户注册赠送积分活动 892678
科研通“疑难数据库(出版商)”最低求助积分说明 815029