1.4k citations · 3.2k across the 37 of their papers we have counts for
37 papers
Free-electron Brewster radiation
Ruoxi Chen, Jialin Chen, Zheng Gong +7
Free-electron radiation offers an enticing route to create light emission at arbitrary spectral regime. However, this type of light emission is generally weak, which is intrinsical…
Dipole-matter interactions governed by the asymmetry of Maxwell equations
Yuhan Zhong, Chan Wang, Chenxu Bian +8
Directionally molding the near-field and far-field radiation lies at the heart of nanophotonics and is crucial for applications such as on-chip information processing and chiral qu…
Low-velocity-favored transition radiation
Jialin Chen, Ruoxi Chen, Zheng Gong +8
When a charged particle penetrates through an optical interface, photon emissions emerge - a phenomenon known as transition radiation. Being paramount to fundamental physics, trans…
Bulk-plasmon-mediated free-electron radiation beyond the conventional formation time
Fuyang Tay, Xiao Lin, Xihang Shi +3
Free-electron radiation is a fundamental photon emission process that is induced by fast-moving electrons interacting with optical media. Historically, it has been understood that,…
Observation of 2D Cherenkov radiation
Yuval Adiv, Hao Hu, Shai Tsesses +8
For over 80 years of research, the conventional description of free-electron radiation phenomena, such as Cherenkov radiation, has remained unchanged: classical three-dimensional e…
A perspective of twisted photonic structures
Jialin Chen, Xiao Lin, Mingyuan Chen +3
Moire superlattices-twisted van der Waals (vdW) structures with small angles-are attracting increasing attention in condensed matter physics, due to important phenomena revealed th…
Free-electron radiation engineering via structured environments
Hao Hu, Xiao Lin, Yu Luo
Free-electron radiation results from the interaction between swift electrons and the local electromagnetic environment. Recent advances in material technologies provide powerful to…
A Brewster route to Cherenkov detectors
Xiao Lin, Hao Hu, Sajan Easo +10
The Cherenkov effect enables a valuable tool, known as the Cherenkov detector, to identify high-energy particles via the measurement of the Cherenkov cone. However, the sensitivity…
Observation of Weyl point pair annihilation in a gyromagnetic photonic crystal
Gui-Geng Liu, Zhen Gao, Peiheng Zhou +9
Weyl semimetals are gapless three-dimensional (3D) phases whose bandstructures contain Weyl point (WP) degeneracies. WPs carry topological charge and can only be eliminated by mutu…
Emerging chiral optics from chiral interfaces
Xinyan Zhang, Yuhan Zhong, Tony Low +2
Twisted atomic bilayers are emerging platforms for manipulating chiral light-matter interaction at the extreme nanoscale, due to their inherent magnetoelectric responses induced by…
Demonstration of negative refraction induced by synthetic gauge fields
Yihao Yang, Yong Ge, Rujiang Li +7
The phenomenon of negative refraction generally requires negative refractive indices or phase discontinuities, which can be realized using metamaterials or metasurfaces. Recent the…
Surface Dyakonov-Cherenkov Radiation
Hao Hu, Xiao Lin, Liang Jie Wong +3
Recent advances in engineered material technologies (e.g., photonic crystals, metamaterials, plasmonics, etc) provide valuable tools to control Cherenkov radiation. In all these ap…
High-Q plasmonic crystal laser for ultra-sensitive biomolecule detection
Jiacheng Sun, Tao Wang, Zeinab Jafari +5
Plasmonic lasers provide a paradigm-changing approach for the generation of coherent light at the nanoscale. In addition to the usual properties of coherent radiation, the emission…
Photonic and plasmonic transition radiation from graphene
Jialin Chen, Hongsheng Chen, Xiao Lin
In the framework of full Maxwell equations, we systematically study the electromagnetic radiation, namely the transition radiation, when a swift electron perpendicularly crosses a…
Chiral plasmons with twisted atomic bilayers
Xiao Lin, Zifei Liu, Tobias Stauber +5
Van der Waals heterostructures of atomically thin layers with rotational misalignments, such as twisted bilayer graphene, feature interesting structural moiré superlattices. Due to…
Negative refraction of ultra-squeezed in-plane hyperbolic designer polaritons
Qiaolu Chen, Yihao Yang, Li Zhang +6
The in-plane negative refraction of high-momentum (i.e., high-k) photonic modes could enable many applications such as imaging and hyperlensing in a planar platform at deep-subwave…
Controlling Cherenkov threshold with nonlocality
Hao Hu, Xiao Lin, Jingjing Zhang +4
Cherenkov radiation is generally believed to be threshold-free in hyperbolic metamaterials owing to the extremely large photonic density of states in classical local framework. Whi…
Normal Doppler frequency shift in negative refractive-index systems
Xiao Lin, Baile Zhang
Besides the well-known negative refraction, a negative refractive-index material can exhibit another two hallmark features, which are the inverse Doppler effect and backward Cheren…
Observation of an unpaired photonic Dirac point
Gui-Geng Liu, Peiheng Zhou, Yihao Yang +7
At photonic Dirac points, electromagnetic waves are governed by the same equations as two-component massless relativistic fermions. However, photonic Dirac points are known to occu…
Controlling photonic spin Hall effect via exceptional points
Xinxing Zhou, Xiao Lin, Zhicheng Xiao +4
The photonic spin Hall effect (SHE), featured by a spin-dependent transverse shift of an impinging optical beam driven by its polarization handedness, has many applications includi…
Valley-Hall photonic topological insulators with dual-band kink states
Qiaolu Chen, Li Zhang, Mengjia He +6
Extensive researches have revealed that valley, a binary degree of freedom (DOF), can be an excellent candidate of information carrier. Recently, valley DOF has been introduced int…
Type-I hyperbolic metasurfaces for highly-squeezed designer polaritons with negative group velocity
Yihao Yang, Pengfei Qin, Xiao Lin +4
Hyperbolic polaritons in van der Waals materials and metamaterial heterostructures provide unprecedented control over light-matter interaction at the extreme nanoscale. Here, we pr…
Experimental observation of superscattering
Chao Qian, Xiao Lin, Yi Yang +6
Superscattering, induced by degenerate resonances, breaks the fundamental single-channel limit of scattering cross section of subwavelength structures; in principle, an arbitrarily…
Broadband negative refraction of highly squeezed hyperbolic graphene plasmons
Jing Jiang, Xiao Lin, Baile Zhang
Negative refraction of highly squeezed polaritons is a fundamental building block for nanophotonics, since it can enable many unique applications, such as deep-subwavelength imagin…