Non-Hermitian topological photonics

H Nasari, GG Pyrialakos, DN Christodoulides… - Optical Materials …, 2023 - opg.optica.org
Recent years have witnessed a flurry of research activities in topological photonics,
predominantly driven by the prospect for topological protection–a property that endows such …

Complex skin modes in non-Hermitian coupled laser arrays

YGN Liu, Y Wei, O Hemmatyar, GG Pyrialakos… - Light: Science & …, 2022 - nature.com
From biological ecosystems to spin glasses, connectivity plays a crucial role in determining
the function, dynamics, and resiliency of a network. In the realm of non-Hermitian physics …

Thirty years in silicon photonics: a personal view

L Pavesi - Frontiers in Physics, 2021 - frontiersin.org
Silicon Photonics, the technology where optical devices are fabricated by the mainstream
microelectronic processing technology, was proposed almost 30 years ago. I joined this …

Gain-induced topological response via tailored long-range interactions

YGN Liu, PS Jung, M Parto, DN Christodoulides… - Nature Physics, 2021 - nature.com
The ability to tailor the hop** interactions between the constituent elements of a physical
system could enable the observation of unusual phenomena that are otherwise inaccessible …

Long-range-interacting topological photonic lattices breaking channel-bandwidth limit

G Kim, J Suh, D Lee, N Park, S Yu - Light: Science & Applications, 2024 - nature.com
The presence of long-range interactions is crucial in distinguishing between abstract
complex networks and wave systems. In photonics, because electromagnetic interactions …

Unidirectional lasing in nonlinear Taiji microring resonators

A Muñoz de las Heras, I Carusotto - Physical Review A, 2021 - APS
We develop a general formalism to study laser operation in active microring resonators
supporting two counterpropagating modes. Our formalism is based on the coupled-mode …

Coherent resonant transmission

HS Xu, L ** - Physical Review Research, 2022 - APS
The reflectionless coherent light transport in the coupled resonator array is investigated in
the presence of intra-resonator intermodal coupling between the clockwise and …

Bound states in the continuum induced via local symmetries in complex structures

CZ Wang, U Kuhl, A Dowling, H Schanz, T Kottos - Physical Review Applied, 2024 - APS
Bound states in the continuum (BICs) defy the conventional wisdom that assumes a spectral
separation between propagating waves, that carry energy away, and spatially localized …

Interferometric method to estimate the eigenvalues of a non-Hermitian two-level optical system

S Biasi, R Franchi, F Mione, L Pavesi - Photonics Research, 2022 - opg.optica.org
Non-Hermitian physics has found a fertile ground in optics. Recently, the study of mode
coalescence, ie, exceptional points, has led to the discovery of intriguing and …

Non-Hermitian laser arrays with tunable phase locking

S Longhi - Optics Letters, 2022 - opg.optica.org
Inspired by the idea of non-Hermitian spectral engineering and non-Hermitian skin effect, a
novel, to the best of our knowledge, design for stable emission of coupled laser arrays with …