341 citations · 2.8k across the 58 of their papers we have counts for
58 papers
Vortex solitons in disclination quasicrystals
Hua Zhong, Yaroslav V Kartashov, Yongdong Li +2
Being structures characterized by discrete rotational symmetry of order , photonic quasicrystals are capable to support stable propagation of linear vortex-carry…
Floquet edge solitons in modulated trimer waveguide arrays
Shuang Shen, Yaroslav V. Kartashov, Yongdong Li +1
We show that one-dimensional Floquet trimer arrays with periodically oscillating waveguides support two different and co-existing types of topological Floquet edge states in two di…
Observation of solitons in oscillating waveguide arrays
Antonina A. Arkhipova, Yiqi Zhang, Yaroslav V. Kartashov +8
Floquet systems with periodically varying in time parameters enable realization of unconventional topological phases that do not exist in static systems with constant parameters an…
Observation of nonlinear disclination states
Boquan Ren, A. A. Arkhipova, Yiqi Zhang +10
Introduction of controllable deformations into periodic materials that lead to disclinations in their structure opens novel routes for construction of higher-order topological insu…
Floquet topological insulators with hybrid edges
Boquan Ren, Yaroslav V. Kartashov, Hongguang Wang +2
Topological edge states form at the edges of periodic materials with specific degeneracies in their modal spectra, such as Dirac points, under the action of effects breaking certai…
Nonlinear photonic disclination states
Boquan Ren, Hongguang Wang, Yaroslav V. Kartashov +2
Higher-order topological insulators are unusual materials that can support topologically protected states, whose dimensionality is lower than the dimensionality of the structure at…
Valley Hall edge solitons in a photonic graphene
Qian Tang, Boquan Ren, Victor O. Kompanets +3
We predict the existence and study properties of the valley Hall edge solitons in a composite photonic graphene with a domain wall between two honeycomb lattices with broken invers…
Dark topological valley Hall edge solitons
Boquan Ren, Hongguang Wang, Victor O. Kompanets +3
Topological edge solitons propagating along the edge of a photonic topological insulator are localized self-sustained hybrid states that are immune to de-fects/disorders due to pro…
Vector valley Hall edge solitons in superhoneycomb lattices
Qian Tang, Yiqi Zhang, Yaroslav V. Kartashov +2
Topological edge solitons that bifurcate and inherit topological protection from linear edge states and, therefore, demonstrate immunity to disorder and defects upon propagation, a…
Atomic-scale Manipulation of Single-Polaron in a Two-Dimensional Semiconductor
Huiru Liu, Aolei Wang, Ping Zhang +9
Polaron is a composite quasiparticle derived from an excess carrier trapped by local lattice distortion, and it has been studied extensively for decades both theoretically and expe…
Theory of Topological Corner State Laser in Kagome Waveguide Arrays
Hua Zhong, Yaroslav V. Kartashov, Alexander Szameit +3
In comparison with conventional lasers, topological lasers are more robust and can be immune to disorder or de-fects if lasing occurs in topologically protected states. Previously…
Nonlinear second-order photonic topological insulators
Marco S. Kirsch, Yiqi Zhang, Mark Kremer +7
Higher-order topological insulators (HOTI) are a novel topological phase beyond the framework of the conventional bulk-boundary correspondence. In these peculiar systems, the topol…
Nonlinear Topological Valley Hall Edge States Arising from Type-II Dirac Cones
Hua Zhong, Shiqi Xia, Yongdong Li +4
Type-II Dirac/Weyl points, although impermissible in particle physics due to Lorentz covariance, were uncovered in condensed matter physics, driven by fundamental interest and intr…
Rabi oscillation of azimuthons in weakly nonlinear waveguides
Kaichao Jin, Yongdong Li, Feng Li +3
Rabi oscillation, an inter-band oscillation, depicts the periodic flopping between two states that belong to different energy levels in the presence of an oscillatory driving field…
Nonlinear higher-order polariton topological insulator
Yiqi Zhang, Y. V. Kartashov, L. Torner +2
We address the resonant response and bistability of the exciton-polariton corner states in a higher-order nonlinear topological insulator realized with kagome arrangement of microc…
Type-II Dirac photonic lattices
Kaichao Jin, Hua Zhong, Yongdong Li +5
Different from the Fermi surface of the type-I Dirac semimetal being a point, that of the type-II Dirac semimetal is a pair of crossing lines because the Dirac cone is tilted with…
Flatband Line States in Photonic Super-Honeycomb Lattices
Wenchao Yan, Hua Zhong, Daohong Song +5
We establish experimentally a photonic super-honeycomb lattice (sHCL) by use of a cw-laser writing technique, and thereby demonstrate two distinct flatband line states that manifes…
Floquet topological insulator laser
Sergey K. Ivanov, Yiqi Zhang, Yaroslav V. Kartashov +1
We introduce a class of topological lasers based on the photonic Floquet topological insulator concept. The proposed system is realized as a truncated array of the lasing helical w…
Interface states in polariton topological insulators
Yiqi Zhang, Yaroslav V. Kartashov, Albert Ferrando
We address linear and nonlinear topological interface states in polariton condensates excited at the interface of the honeycomb and Lieb arrays of microcavity pillars in the presen…
Rabi-like oscillation of photonic topological valley Hall edge states
Hua Zhong, Yaroslav V. Kartashov, Yiqi Zhang +4
We investigate Rabi-like oscillations of topological valley Hall edge states by introducing two zigzag domain walls in an inversion-symmetry-breaking honeycomb photonic lattice. Su…
Generating Lieb and super-honeycomb lattices by employing the fractional Talbot effect
Hua Zhong, Yiqi Zhang, Milivoj R. Belic +1
We demonstrate a novel method for producing optically-induced Lieb and super-honeycomb lattices, by employing the fractional Talbot effect of specific periodic beam structures. Our…
Asymmetric conical diffraction in dislocated edge-centered square lattices
Hua Zhong, Rong Wang, Milivoj R. Belic +2
We investigate linear and nonlinear evolution dynamics of light beams propagating along a dislocated edge-centered square lattice. The band structure and Brillouin zones of this no…
Inhibition of tunnelling and edge state control in polariton topological insulators
Yiqi Zhang, Yaroslav V. Kartashov, Yanpeng Zhang +2
We address the inhibition of tunnelling in polariton condensates confined in a potential landscape created by a honeycomb array of microcavity pillars in the presence of spin-orbit…
Resonant edge-state switching in polariton topological insulators
Yiqi Zhang, Yaroslav V. Kartashov, Yanpeng Zhang +2
Topological insulators are unique devices supporting unidirectional edge states at their interfaces. Due to topological protection, such edge states persist in the presence of diso…