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 …

Photonic circuits written by femtosecond laser in glass: improved fabrication and recent progress in photonic devices

D Tan, Z Wang, B Xu, J Qiu - Advanced Photonics, 2021 - spiedigitallibrary.org
Integrated photonics is attracting considerable attention and has found many applications in
both classical and quantum optics, fulfilling the requirements for the ever-growing complexity …

Nonlinear second-order photonic topological insulators

MS Kirsch, Y Zhang, M Kremer, LJ Maczewsky… - Nature Physics, 2021 - nature.com
Higher-order topological insulators are a novel topological phase beyond the framework of
conventional bulk–boundary correspondence,. In these peculiar systems, the topologically …

Nonlinearity-induced photonic topological insulator

LJ Maczewsky, M Heinrich, M Kremer, SK Ivanov… - Science, 2020 - science.org
A hallmark feature of topological insulators is robust edge transport that is impervious to
scattering at defects and lattice disorder. We demonstrate a topological system, using a …

Roadmap on topological photonics

H Price, Y Chong, A Khanikaev… - Journal of Physics …, 2022 - iopscience.iop.org
Topological photonics seeks to control the behaviour of the light through the design of
protected topological modes in photonic structures. While this approach originated from …

Topologically protected quantum entanglement emitters

T Dai, Y Ao, J Bao, J Mao, Y Chi, Z Fu, Y You… - Nature …, 2022 - nature.com
Entanglement and topology portray nature at the fundamental level but differently. Entangled
states of particles are intrinsically sensitive to the environment, whereas the topological …

Chip-scale Floquet topological insulators for 5G wireless systems

A Nagulu, X Ni, A Kord, M Tymchenko, S Garikapati… - Nature …, 2022 - nature.com
Floquet topological insulators, which have an exotic topological order sustained by time-
varying Hamiltonians, could be of use in a range of technologies, including wireless …

Parity–time-symmetric photonic topological insulator

A Fritzsche, T Biesenthal, LJ Maczewsky, K Becker… - Nature Materials, 2024 - nature.com
Topological insulators are a concept that originally stems from condensed matter physics. As
a corollary to their hallmark protected edge transport, the conventional understanding of …

On-chip beam rotators, adiabatic mode converters, and waveplates through low-loss waveguides with variable cross-sections

B Sun, F Morozko, PS Salter, S Moser, Z Pong… - Light: Science & …, 2022 - nature.com
Photonics integrated circuitry would benefit considerably from the ability to arbitrarily control
waveguide cross-sections with high precision and low loss, in order to provide more …

Bimorphic Floquet topological insulators

GG Pyrialakos, J Beck, M Heinrich, LJ Maczewsky… - Nature Materials, 2022 - nature.com
Topological theories have established a unique set of rules that govern the transport
properties in a wide variety of wave-mechanical settings. In a marked departure from the …