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 photonic crystals: physics, designs, and applications

GJ Tang, XT He, FL Shi, JW Liu… - Laser & Photonics …, 2022 - Wiley Online Library
Recent research in topological photonics has not only proposed and realized novel
topological phenomena such as one‐way broadband propagation and robust transport of …

Dielectric resonant metaphotonics

K Koshelev, Y Kivshar - Acs Photonics, 2020 - ACS Publications
Recent rapid progress in subwavelength optics and nanophotonics with dielectric structures
is underpinned by the physics of Mie resonances excited in nanoparticles with a high …

Topological metamaterials

X Ni, S Yves, A Krasnok, A Alu - Chemical Reviews, 2023 - ACS Publications
The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

Nonlinear topological photonics

D Smirnova, D Leykam, Y Chong… - Applied Physics Reviews, 2020 - pubs.aip.org
Rapidly growing demands for fast information processing have launched a race for creating
compact and highly efficient optical devices that can reliably transmit signals without losses …

[HTML][HTML] A brief review of topological photonics in one, two, and three dimensions

Z Lan, MLN Chen, F Gao, S Zhang, EI Wei - Reviews in Physics, 2022 - Elsevier
Topological photonics has attracted increasing attention in recent years due to the unique
opportunities it provides to manipulate light in a robust way immune to disorder and defects …

Extended topological valley-locked surface acoustic waves

JQ Wang, ZD Zhang, SY Yu, H Ge, KF Liu, T Wu… - Nature …, 2022 - nature.com
Stable and efficient guided waves are essential for information transmission and processing.
Recently, topological valley-contrasting materials in condensed matter systems have been …

Nonlinear dielectric nanoantennas and metasurfaces: frequency conversion and wavefront control

G Grinblat - ACS Photonics, 2021 - ACS Publications
High-index dielectric nanostructures can support optical resonances of electric and
magnetic character with ultralow linear absorption. In contrast to plasmonics, they can be …

Creating pairs of exceptional points for arbitrary polarization control: asymmetric vectorial wavefront modulation

Z Yang, PS Huang, YT Lin, H Qin… - Nature …, 2024 - nature.com
Exceptional points (EPs) can achieve intriguing asymmetric control in non-Hermitian
systems due to the degeneracy of eigenstates. Here, we present a general method that …

Topological metasurface: From passive toward active and beyond

JW You, Z Lan, Q Ma, Z Gao, Y Yang, F Gao… - Photonics …, 2023 - opg.optica.org
Metasurfaces are subwavelength structured thin films consisting of arrays of units that allow
the control of polarization, phase, and amplitude of light over a subwavelength thickness …