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
Jasper应助含蓄绿兰采纳,获得10
1秒前
1秒前
2秒前
领导范儿应助sdsa采纳,获得10
2秒前
2秒前
粒粒2完成签到 ,获得积分10
2秒前
ganjqly完成签到,获得积分10
3秒前
accept发布了新的文献求助10
3秒前
李健应助miaomiaomiao采纳,获得10
3秒前
3秒前
蛋卷发布了新的文献求助10
3秒前
积极的若山发布了新的文献求助200
3秒前
我是老大应助srui采纳,获得10
4秒前
zmayq完成签到,获得积分10
4秒前
瓜姐发布了新的文献求助10
5秒前
egg完成签到,获得积分10
5秒前
鲤鱼白枫完成签到,获得积分10
6秒前
6秒前
7777发布了新的文献求助10
6秒前
7秒前
11关注了科研通微信公众号
7秒前
7秒前
7秒前
8秒前
Super Zzzz完成签到,获得积分10
8秒前
8秒前
yar应助小鱼采纳,获得10
9秒前
鱼瓜瓜完成签到,获得积分10
9秒前
遇见完成签到,获得积分20
10秒前
10秒前
成就飞柏发布了新的文献求助10
11秒前
朴实完成签到,获得积分10
11秒前
NexusExplorer应助wualexandra采纳,获得10
12秒前
wy发布了新的文献求助10
12秒前
啊呀完成签到,获得积分10
12秒前
lovekobe完成签到,获得积分10
13秒前
kk完成签到,获得积分10
13秒前
魔幻的盼芙完成签到 ,获得积分10
13秒前
psychosocial发布了新的文献求助10
13秒前
14秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 360
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 3970802
求助须知:如何正确求助?哪些是违规求助? 3515474
关于积分的说明 11178714
捐赠科研通 3250627
什么是DOI,文献DOI怎么找? 1795390
邀请新用户注册赠送积分活动 875818
科研通“疑难数据库(出版商)”最低求助积分说明 805183