142 citations · 951 across the 34 of their papers we have counts for
30 papers · 1 filter
Learning light scattering from operator parameter spaces to Galerkin-consistent solution spaces
Lida Liu, Jingwei Wang, Wei Cao +2
Efficient and generalizable full-wave simulation is essential for nanophotonic analysis and inverse design, yet existing methods face a tradeoff between the high computational cost…
Nonequilibrium transport and the fluctuation theorem in the thermodynamic behaviors of nonlinear photonic systems
Yang Liu, Jincheng Lu, Zhongfei Xiong +4
Nonlinear multimode optical systems have attracted substantial attention due to their rich physical properties. Complex interplay between the nonlinear effects and mode couplings m…
Geometric Phase-Driven Scattering Evolutions
Pengxiang Wang, Yuntian Chen, Wei Liu
Conventional approaches for scattering manipulations rely on the technique of field expansions into spherical harmonics (electromagnetic multipoles), which nevertheless is non-gene…
Efficient and accurate numerical-projection of electromagnetic multipoles for scattering objects
Wenfei Guo, Zizhe Cai, Zhongfei Xiong +2
In this paper, we develop an efficient and accurate procedure of electromagnetic multipole decomposition by using the Lebedev and Gaussian quadrature methods to perform the numeric…
Topology-enabled highly efficient beam combination
Yuhao Jing, Yucong Yang, Wei Yan +7
Beam combination with high efficiency is desirable to overcome the power limit of single electromagnetic sources, enabling long-distance optical communication and high-power laser.…
Design optimization of band-pass filter based on parity-time symmetry coupled-resonant
Xinda Lu, Nuo Chen, Boqing Zhang +4
Integrated optical filter based on microring resonators plays a critical role in many applications, ranging from wavelength division multiplexing and switching to channel routing.…
Nonreciprocal light propagation induced by a subwavelength spinning cylinder
Zheng Yang, Yuqiong Cheng, Neng Wang +2
Nonreciprocal optical devices have broad applications in light manipulations for communications and sensing. Non-magnetic mechanisms of optical nonreciprocity are highly desired fo…
Chiral polarizer based on encircling EP
Yanxian Wei, Hailong Zhou, Yuntian Chen +3
Encircling an exceptional point (EP) in a parity-time (PT) symmetric system has shown great potential for chiral optical devices, such as chiral mode switching for symmetric and an…
Non-Hermitian singularities induced single-mode depletion and soliton formation in microresonators
Boqing Zhang, Nuo Chen, Haofan Yang +4
On-chip manipulation of single resonance over broad background comb spectra of microring resonators is indispensable, ranging from tailoring laser emission, optical signal processi…
Optically reconfigurable quantum spin-valley Hall effect of light in coupled nonlinear ring resonator lattice
Haofan Yang, Jing Xu, Zhongfei Xiong +4
Scattering immune propagation of light in topological photonic systems may revolutionarize the design of integrated photonic circuits for information processing and communications.…
Optical isolation induced by subwavelength spinning particle via spin-orbit interaction
Hongkang Shi, Yuqiong Cheng, Zheng Yang +2
Optical isolation enables nonreciprocal manipulations of light with broad applications in optical communications. Optical isolation by rotating structures has drawn considerable at…
Evolution and global charge conservation for polarization singularities emerging from nonhermitian degeneracies
Weijin Chen, Qingdong Yang, Yuntian Chen +1
Core concepts in singular optics, especially the polarization singularity, have rapidly penetrated the surging fields of topological and nonhermitian photonics. For open photonic s…
Hidden-symmetry-enforced nexus points of nodal lines in layer-stacked dielectric photonic crystals
Zhongfei Xiong, Ruo-Yang Zhang, Rui Yu +2
It was recently demonstrated that the connectivities of bands emerging from zero frequency in dielectric photonic crystals are distinct from their electronic counterparts with the…
Machine prediction of topological transitions in photonic crystals
Bei Wu, Kun Ding, C. T. Chan +1
We train artificial neural networks to distinguish the geometric phases of a set of bands in 1D photonic crystals. We find that the trained network yields remarkably accurate predi…
Gauge-field description of Sagnac frequency shift and mode hybridization in a rotating cavity
Hongkang Shi, Zhongfei Xiong, Weijin Chen +3
Active optical systems can give rise to intriguing phenomena and applications that are not available in conventional passive systems. Structural rotation has been widely employed t…
Finite element based Green's function integral equation for modelling light scattering
Wen Li, Dong Tan, Jing Xu +2
We revisit the volume Green's function integral equation for modelling light scattering with discretization strategies as well as numerical integration recipes borrowed from finite…
Arbitrary order exceptional point induced by photonic spin-orbit interaction in coupled resonators
Shubo Wang, Bo Hou, Weixin Lu +3
Many novel properties of non-Hermitian systems are found at or near the exceptional points-branch points of complex energy surfaces at which eigenvalues and eigenvectors coalesce.…
Non-Abelian gauge field optics
Yuntian Chen, Ruo-Yang Zhang, Zhongfei Xiong +4
The concept of gauge field is a cornerstone of modern physics and the synthetic gauge field has emerged as a new way to manipulate particles in many disciplines. In optics, several…
Generalized coupled mode formalism in reciprocal waveguides with gain/loss, anisotropy or bianisotropy
Weijin Chen, Zhongfei Xiong, Jing Xu +1
In anisotropic or bianisotropic waveguides, the standard coupled mode theory fails due to the broken link between the forward and backward propagating modes, which together form th…
Energy transfer channels of the plasmon excitation process in STM tunnel junctions
Yaoqin Lu, Yuntian Chen, Jing Xu +2
We study the decay of gap plasmons localized between a scanning tunneling microscope tip and metal substrate, excited by inelastic tunneling electrons. The overall excited energy f…
Classification of symmetry properties of waveguide modes in presence of gain/losses, anisotropy/bianisotropy, or continuous/discrete rotational symmetry
Zhongfei Xiong, Weijin Chen, Peng Wang +1
We study the symmetric properties of waveguide modes in presence of gain/losses, anisotropy/bianisotropy, or continuous/discrete rotational symmetry. We provide a comprehensive app…
General point dipole theory for periodic metasurfaces: magnetoelectric scattering lattices coupled to planar photonic structures
Yuntian Chen, A. Femius Koenderink
We study semi-analytically the light emission and absorption properties of arbitrary stratified photonic structures with embedded two-dimensional magnetoelectric point scattering l…
Fourier finite element modeling of light emission in waveguides: 2.5-dimensional FEM approach
Yangxin Ou, David Pardo, Yuntian Chen
We present a Fourier finite element modeling of light emission of dipolar emitters coupled to infinitely long waveguides. Due to the translational symmetry, the three-dimensional (…
General coupled mode theory in non-Hermitian waveguides
Jing Xu, Yuntian Chen
In the presence of loss and gain, the coupled mode equation on describing the mode hybridization of various waveguides or cavities, or cavities coupled to waveguides becomes intrin…