Orbital angular momentum (OAM) of light is an important feature of structured electromagnetic fields exhibiting non-uniform spatial distribution. In contrast to a spin …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …