Exceptional points and non-Hermitian photonics at the nanoscale

A Li, H Wei, M Cotrufo, W Chen, S Mann, X Ni… - Nature …, 2023‏ - nature.com
Exceptional points (EPs) arising in non-Hermitian systems have led to a variety of intriguing
wave phenomena, and have been attracting increased interest in various physical platforms …

Topological non-Hermitian skin effect

R Lin, T Tai, L Li, CH Lee - Frontiers of Physics, 2023‏ - Springer
This article reviews recent developments in the non-Hermitian skin effect (NHSE),
particularly on its rich interplay with topology. The review starts off with a pedagogical …

Roadmap for optical metasurfaces

AI Kuznetsov, ML Brongersma, J Yao, MK Chen… - ACS …, 2024‏ - ACS Publications
Metasurfaces have recently risen to prominence in optical research, providing unique
functionalities that can be used for imaging, beam forming, holography, polarimetry, and …

Applications of bound states in the continuum in photonics

M Kang, T Liu, CT Chan, M **ao - Nature Reviews Physics, 2023‏ - nature.com
Bound states in the continuum (BICs) have attracted attention in photonics owing to their
interesting properties. For example, BICs can effectively confine light in a counterintuitive …

A second wave of topological phenomena in photonics and acoustics

X Zhang, F Zangeneh-Nejad, ZG Chen, MH Lu… - Nature, 2023‏ - nature.com
Light and sound are the most ubiquitous forms of waves, associated with a variety of
phenomena and physical effects such as rainbows and echoes. Light and sound, both …

Non-Hermitian topology and exceptional-point geometries

K Ding, C Fang, G Ma - Nature Reviews Physics, 2022‏ - nature.com
Non-Hermitian theory is a theoretical framework used to describe open systems. It offers a
powerful tool in the characterization of both the intrinsic degrees of freedom of a system and …

Non-Hermitian topological phenomena: A review

N Okuma, M Sato - Annual Review of Condensed Matter Physics, 2023‏ - annualreviews.org
The past decades have witnessed an explosion of interest in topological materials, and a lot
of mathematical concepts have been introduced in condensed matter physics. Among them …

Diffusion metamaterials

Z Zhang, L Xu, T Qu, M Lei, ZK Lin, X Ouyang… - Nature Reviews …, 2023‏ - nature.com
Diffusion and wave propagation are both fundamental transport mechanisms, but they have
intrinsically different dynamics, governing equations, and applications. Over the past …

Lasing of carbon dots: Chemical design, mechanisms, and bright future

Y Zhang, S Lu - Chem, 2024‏ - cell.com
Carbon dots (CDs) are a new solution-processable laser material. They offer advantages of
non-toxicity, low cost, and high stability, making them attractive for the sustainable …

Rashba-like physics in condensed matter

G Bihlmayer, P Noël, DV Vyalikh, EV Chulkov… - Nature Reviews …, 2022‏ - nature.com
Spin–orbit coupling induces a unique form of Zeeman interaction in momentum space in
materials that lack inversion symmetry: the electron's spin is locked on an effective magnetic …