1.4k citations · 3k across the 20 of their papers we have counts for
20 papers
Photonic Floquet skin-topological effect
Yeyang Sun, Xiangrui Hou, Tuo Wan +4
Non-Hermitian skin effect and photonic topological edge states are of great interest in non-Hermitian physics and optics. However, the interplay between them is largly unexplored.…
Quantum time reflection and refraction of ultracold atoms
Zhaoli Dong, Hang Li, Tuo Wan +3
Time reflection and refraction are temporal analogies of the spatial boundary effects derived from Fermat's principle. They occur when classical waves strike a time boundary where…
Observation of acoustic spatiotemporal vortices
Hongliang Zhang, Yeyang Sun, Junyi Huang +4
Vortices in fluids and gases have piqued the interest of human for centuries. Development of classical-wave physics and quantum mechanics highlighted wave vortices characterized by…
Higher-order topological phase in an acoustic fractal lattice
Junkai Li, Qingyang Mo, Jian-Hua Jiang +1
Higher-order topological insulators, which support lower-dimensional topological boundary states than the first-order topological insulators, have been intensely investigated in th…
Observation of squeezed Chern insulator in an acoustic fractal lattice
Junkai Li, Yeyang Sun, Qingyang Mo +2
Topological insulators are a new phase of matter with the distinctive characteristics of an insulating bulk and conducting edge states. Recent theories indicate there even exist to…
Three-dimensional photonic topological insulator induced by lattice dislocations
Eran Lustig, Lukas J. Maczewsky, Julius Beck +6
The hallmark of topological insulators is the scatter-free propagation of waves in topologically protected edge channels. This transport is strictly chiral on the outer edge of the…
Photonic Floquet topological insulators in a fractal lattice
Zhaoju Yang, Eran Lustig, Yaakov Lumer +1
We present Floquet fractal topological insulators: photonic topological insulators in a fractal-dimensional lattice consisting of helical waveguides. The helical modulation induces…
Mode-Locked Topological Insulator Laser Utilizing Synthetic Dimensions
Zhaoju Yang, Eran Lustig, Gal Harari +4
We propose a system that exploits the fundamental features of topological photonics and synthetic dimensions to force many semiconductor laser resonators to synchronize, mutually l…
Superlight inverse Doppler effect
Xihang Shi, Xiao Lin, Ido Kaminer +5
There is a century-old tenet [1, 2] that the inverse Doppler frequency shift of light [3-13] is impossible in homogeneous systems with a positive refractive index. Here we break th…
Valley kink states and topological channel intersections in substrate-integrated photonic circuitry
Li Zhang, Yihao Yang, Mengjia He +8
Valley degrees of freedom, providing a novel way to increase capacity and efficiency of information processing, have become an important instrument for photonics. Experimental stud…
Realization of a three-dimensional photonic topological insulator
Yihao Yang, Zhen Gao, Haoran Xue +7
Confining photons in a finite volume is in high demand in modern photonic devices. This motivated decades ago the invention of photonic crystals, featured with a photonic bandgap f…
Topologically-protected refraction of robust kink states in valley photonic crystals
Fei Gao, Haoran Xue, Zhaoju Yang +6
Recently discovered valley photonic crystals (VPCs) mimic many of the unusual properties of two-dimensional gapped valleytronic materials such as bilayer graphene or MoS2. Of the u…
Realising Type II Weyl Points in an Optical Lattice
Kunal Shastri, Zhaoju Yang, Baile Zhang
The recent discovery of the Lorentz symmetry-violating 'Type II' Weyl semimetal phase has renewed interest in the study of Weyl physics in condensed matter systems. However, tuning…
Acoustic type-II Weyl nodes from stacking dimerized chains
Zhaoju Yang, Baile Zhang
Lorentz-violating type-II Weyl fermions, which were missed in Weyl's prediction of nowadays classified type-I Weyl fermions in quantum field theory, have recently been proposed in…
Vertical Transport of Subwavelength Localized Surface Electromagnetic Modes
Fei Gao, Zhen Gao, Youming Zhang +3
Transport of subwavelength electromagnetic (EM) energy has been achieved through near-field coupling of highly confined surface EM modes supported by plasmonic nanoparticles, in a…
Dynamical Mechanism of Two-Dimensional Plasmon Launching by Swift Electrons
Xiao Lin, Xihang Shi, Fei Gao +8
Launching of surface plasmons by swift electrons has long been utilized in electron-energy-loss spectroscopy (EELS) to investigate plasmonic properties of ultrathin, or two-dimensi…
Caustic graphene plasmons with Kelvin angle
Xihang Shi, Xiao Lin, Fei Gao +3
A century-long argument made by Lord Kelvin that all swimming objects have an effective Mach number of 3, corresponding to the Kelvin angle of 19.5 degree for ship waves, has been…
Probing topological protection using a designer surface plasmon structure
Fei Gao, Zhen Gao, Xihang Shi +9
Topological photonic states, inspired by robust chiral edge states in topological insulators, have recently been demonstrated in a few photonic systems, including an array of coupl…
Topological water wave state in a one-dimensional structure
Zhaoju Yang, Fei Gao, Baile Zhang
Topological concepts have been introduced into electronic, photonic, and phononic systems, but have not been studied in surface-water-wave systems. Here we study a one-dimensional…
Topological Acoustics
Zhaoju Yang, Fei Gao, Xihang Shi +4
The manipulation of acoustic wave propagation in fluids has numerous applications, including some in everyday life. Acoustic technologies frequently develop in tandem with optics,…