Frontiers in multidimensional self-trapping of nonlinear fields and matter

YV Kartashov, GE Astrakharchik, BA Malomed… - Nature Reviews …, 2019 - nature.com
Abstract 2D and 3D solitons and related states, such as quantum droplets, can appear in
optical systems, atomic Bose–Einstein condensates (BECs) and liquid crystals, among other …

Light–matter interaction empowered by orbital angular momentum: Control of matter at the micro-and nanoscale

A Porfirev, S Khonina, A Kuchmizhak - Progress in Quantum Electronics, 2023 - Elsevier
Orbital angular momentum (OAM) of light is an important feature of structured
electromagnetic fields exhibiting non-uniform spatial distribution. In contrast to a spin …

Vortex solitons in twisted circular waveguide arrays

L Dong, YV Kartashov, L Torner, A Ferrando - Physical review letters, 2022 - APS
We address the formation of topological states in twisted circular waveguide arrays and find
that twisting leads to important differences of the fundamental properties of new vortex …

Airy beam induced optical routing

P Rose, F Diebel, M Boguslawski, C Denz - Applied Physics Letters, 2013 - pubs.aip.org
We present an all-optical routing scheme based simultaneously on optically induced
photonic structures and the Airy beam family. The presented work utilizes these accelerating …

Semidiscrete optical vortex droplets in quasi-phase-matched photonic crystals

X Xu, F Zhao, J Huang, H He, L Zhang, Z Chen… - Optics …, 2023 - opg.optica.org
What we believe is a new scheme for producing semidiscrete self-trapped vortices (“swirling
photon droplets”) in photonic crystals with competing quadratic (χ^(2)) and self-defocusing …

Vortex solitons in moiré optical lattices

SK Ivanov, VV Konotop, YV Kartashov, L Torner - Optics Letters, 2023 - opg.optica.org
We show that optical moiré lattices enable the existence of vortex solitons of different types
in self-focusing Kerr media. We address the properties of such states both in lattices having …

Photonic Floquet topological insulators in atomic ensembles

Y Zhang, Z Wu, MR Belić, H Zheng… - Laser & Photonics …, 2015 - Wiley Online Library
The feasibility of realizing a photonic Floquet topological insulator (PFTI) in an atomic
ensemble is demonstrated. The interference of three coupling fields will split energy levels …

Stable Vortex Solitons Sustained by Localized Gain in a Cubic Medium

C Li, YV Kartashov - Physical Review Letters, 2024 - APS
We propose a simple dissipative system with purely cubic defocusing nonlinearity and
nonuniform linear gain that can support stable localized dissipative vortex solitons with high …

Topological States in Partially--Symmetric Azimuthal Potentials

YV Kartashov, VV Konotop, L Torner - Physical review letters, 2015 - APS
We introduce partially-parity-time (p PT)-symmetric azimuthal potentials composed from
individual PT-symmetric cells located on a ring, where two azimuthal directions are …

Localized States Emerging from Singular and Nonsingular Flat Bands in a Frustrated Fractal‐Like Photonic Lattice

H Hanafi, P Menz, C Denz - Advanced Optical Materials, 2022 - Wiley Online Library
Singular and nonsingular flat bands in a Sierpinski fractal‐like photonic lattice are reported.
It is demonstrated that the lowest two bands, being isolated and degenerate due to …