Explanipedia

DFPL: Decentralized Federated Prototype Learning Across Heterogeneous Data Distributions Open

Hongliang Zhang, Fenghua Xu, Zhongyuan Yu, Shanchen Pang, Chunqiang Hu , et al. · 2025

Federated learning is a distributed machine learning paradigm through centralized model aggregation. However, standard federated learning relies on a centralized server, making it vulnerable to server failures. While existing solutions uti…

PPFPL: Cross-silo Privacy-preserving Federated Prototype Learning Against Data Poisoning Attacks Open

Hongliang Zhang, Jiguo Yu, Fenghua Xu, Chunqiang Hu, Yongzhao Zhang , et al. · 2025

Privacy-Preserving Federated Learning (PPFL) enables multiple clients to collaboratively train models by submitting secreted model updates. Nonetheless, PPFL is vulnerable to data poisoning attacks due to its distributed training paradigm …

Driving Digital Engineering Integration and Interoperability Through Semantic Integration of Models with Ontologies Open

Daniel Dunbar, Thomas Hagedorn, Mark Blackburn, John Dzielski, Steven Hespelt , et al. · 2022

Engineered solutions are becoming more complex and multi-disciplinary in nature. This evolution requires new techniques to enhance design and analysis tasks that incorporate data integration and interoperability across various engineering …

An Ultra-Wideband Vivaldi Antenna System for Long-Distance Electromagnetic Detection Open

Jinjing Ren, Hezhihan Fan, Qi Tang, Zhongyuan Yu, Yang Xiao , et al. · 2022

Enlarging or reducing the antenna beam width of antennas can improve the positioning capability of detection systems. A miniaturized and easily fabricated ultra-wideband (UWB) antenna system for long-distance electromagnetic detection is p…

Research on Measuring Center Distance between Two Double-Hole Parts Based on Non-Contact Optics with Two Calibration Methods Open

Heng Liu, Yonghua Lü, Haibo Yang, Jiajun Xu, Kaiyuan Zhu , et al. · 2022

Motion parallax and lossless resolution autostereoscopic 3D display based on a binocular viewpoint tracking liquid crystal dynamic grating adaptive screen Open

Yang Meng, Yan Lyu, Laurence Lujun Chen, Zhongyuan Yu, Hongen Liao · 2021

The autostereoscopic 3D display has two important indicators, both the number of viewpoints and display resolution. However, it's a challenge to improve both the viewpoint and the resolution. Here, we develop a fixed-position multiview and…

Ultra-broadband large-angle beam splitter based on a homogeneous metasurface at visible wavelengths Open

Jing Li, Han Ye, Tiesheng Wu, Yumin Liu, Zhongyuan Yu , et al. · 2020

Metasurface-based beam splitters with high efficiency, large split angle, wide bandwidth and easy fabrication are highly desirable and still in pursuit. In this paper, we propose a heuristic scheme for designing an ultra-broadband high-eff…

Characteristics of electric quadrupole and magnetic quadrupole coupling in a symmetric silicon structure Open

Chang Liu, Lei Chen, Tiesheng Wu, Yumin Liu, Rui Ma , et al. · 2020

Multipole interferences have attracted a lot of interests in last decade due to extraordinary performance on beam control and scattering shaping. However, most of previous works focused on the dipole-based interferences while the quadrupol…

Supplementary document for Beyond dipole excitation: the performance of quadrupole-based Huygens’ metasurface - 4728864.pdf Open

Chang Liu, Han Ye, Yu Wang, Yunhang Sun, Yu Min Liu , et al. · 2020

Supplemental results

Broadband Ultrathin Transmission Quarter Waveplate with Rectangular Hole Array Based on Plasmonic Resonances Open

Yu Wang, Yumin Liu, Jing Li, Chang Liu, Zhongyuan Yu , et al. · 2019

Mechanisms of 2π phase control in dielectric metasurface and transmission enhancement effect Open

Jing Li, Tiesheng Wu, Wenbin Xu, Yumin Liu, Chang Liu , et al. · 2019

Metasurfaces, two-dimensional structures composed of nanoantennas in an array configuration, can be used to fully control electromagnetic waves, which requires a 2π phase shift. Herein, we apply the silicon metasurface as an example to int…

Sub-Poissonian photon statistics in quantum dot-metal nanoparticles hybrid system with gain media Open

Yujing Wang, Han Ye, Zhongyuan Yu, Yumin Liu, Wenbin Xu · 2019

Realization of perfect selective absorber based on multipole modes in all-dielectric moth-eye structure Open

Chang Liu, Tiesheng Wu, Yumin Liu, Jing Li, Yu Wang , et al. · 2019

Perfect absorbers play crucial roles in optical functional devices. Among various types of absorbers, moth-eye structures are known for their excellent absorbing efficiency. In this paper, we apply an electromagnetic multipole expansion me…

Efficient Polarization Beam Splitter Based on All-Dielectric Metasurface in Visible Region Open

Jing Li, Chang Liu, Tiesheng Wu, Yumin Liu, Yu Wang , et al. · 2019

Design of Compact TE-Polarized Mode-Order Converter in Silicon Waveguide With High Refractive Index Material Open

Danfeng Zhu, Han Ye, Zhongyuan Yu, Jing Li, Fengyi Yu , et al. · 2018

We propose and numerically demonstrate a design of bidirectional transverse electric (TE) polarized mode-order converter based on silicon-on-insulator platform. This converter is realized by introducing high refractive index material inlai…

Tunable single photon and two-photon emission in a four-level quantum dot-bimodal cavity system Open

Xiang Cheng, Chengwang Zhao, Han Ye, Jingran Liu, Yumin Liu , et al. · 2018

Optically Active Plasmonic Metasurfaces based on the Hybridization of In-Plane Coupling and Out-of-Plane Coupling Open

Dong Wu, Liu Yang, Chang Liu, Zenghui Xu, Yumin Liu , et al. · 2018

Plasmonic metasurfaces have attracted much attention in recent years owing to many promising prospects of applications such as polarization switching, local electric field enhancement (FE), near-perfect absorption, sensing, slow-light devi…

Design of a Tunable Ultra-Broadband Terahertz Absorber Based on Multiple Layers of Graphene Ribbons Open

Zenghui Xu, Dong Wu, Yumin Liu, Chang Liu, Zhongyuan Yu , et al. · 2018

Optical Diode Based on Two-Dimensional Photonic Crystal Open

Han Ye, Yumin Liu, Zhongyuan Yu · 2018

The integrated optical diodes have been a thriving research theme due to their potential on-chip applications in photonic circuits for all-optical computing and information processing. Analogous to electronic counterparts, the unidirection…

Underdetermined Wideband DOA Estimation for Off-Grid Sources with Coprime Array Using Sparse Bayesian Learning Open

Yanhua Qin, Yumin Liu, Jianyi Liu, Zhongyuan Yu · 2018

Sparse Bayesian learning (SBL) is applied to the coprime array for underdetermined wideband direction of arrival (DOA) estimation. Using the augmented covariance matrix, the coprime array can achieve a higher number of degrees of freedom (…

Numerical study of a wide-angle polarization-independent ultra-broadband efficient selective metamaterial absorber for near-ideal solar thermal energy conversion Open

Dong Wu, Chang Liu, Yumin Liu, Zenghui Xu, Zhongyuan Yu , et al. · 2018

A selective solar absorber based on a nanoporous HMM structure is numerically demonstrated to achieve near-ideal solar-thermal conversion.

Structural and electronic properties of hydrogenated GaBi and InBi honeycomb monolayers with point defects Open

Yunzhen Zhang, Han Ye, Zhongyuan Yu, Han Gao, Yumin Liu · 2018

Vacancies, antisites and Stone–Wales defects in H₂-Ga(In)Bi monolayer are investigated using first-principles calculations.

Numerical Study of an Efficient Solar Absorber Consisting of Metal Nanoparticles Open

Chang Liu, Zhang De, Yumin Liu, Dong Wu, Lei Chen , et al. · 2017

We propose and theoretically investigate an efficient solar light absorber based on a multilayer structure consisting of tungsten nanoparticle layers and SiO₂ layers. According to our calculation, average absorbance over 94% is …

Design of a broadband reciprocal optical diode in a silicon waveguide assisted by silver surface plasmonic splitter Open

Jing Li, Han Ye, Zhongyuan Yu, Yumin Liu · 2017

In this paper, we propose a new scheme for a reciprocal optical diode integrated in a multimode silicon waveguide. The compact 4μm long functional region consists of a tapered coupler, a narrow single-mode waveguide, and a half-elliptical …

Numerical Study of the Wide‐angle Polarization‐Independent Ultra‐Broadband Efficient Selective Solar Absorber in the Entire Solar Spectrum (Solar RRL 7∕2017) Open

Dong Wu, Yumin Liu, Zenghui Xu, Zhongyuan Yu, Li Yu , et al. · 2017

Increasing the absorption efficiency of solar radiation has great significance for the renewable energy applications, such as residential water heating, seawater desalination, wastewater treatment and solar thermophotovoltaic devices. Howe…

Ultra-narrow Band Perfect Absorber and Its Application as Plasmonic Sensor in the Visible Region Open

Dong Wu, Ruifang Li, Yumin Liu, Zhongyuan Yu, Li Yu , et al. · 2017

Plasmonic metamaterial for electromagnetically induced transparency analogue and ultra-high figure of merit sensor Open

Dong Wu, Yumin Liu, Li Yu, Zhongyuan Yu, Lei Chen , et al. · 2017

In this work, using finite-difference time-domain method, we propose and numerically demonstrate a novel way to achieve electromagnetically induced transparency (EIT) phenomenon in the reflection spectrum by stacking two different types of…

Unconventional photon blockade in a photonic molecule containing a quantum dot Open

Xiang Cheng, Han Ye, Zhongyuan Yu · 2017

Numerical Investigations of a Silicon Photonic TE-Pass Polarizer Consisting of Alternating Copper/Silicon Nitride Layers Open

Lei Chen, Han Ye, Yumin Liu, Dong Wu, Rui Ma , et al. · 2017

We propose and investigate a silicon photonic TE-pass polarizer consisting of alternating layers made out of copper/silicon nitride (Cu/Si₃N₄). Based on a Si stripe waveguide, the launched dominant fundamental TE mode…

Fully converged plane-wave-based self-consistentcalculations of periodic solids Open

Huawei Cao, Zhongyuan Yu, Pengfei Lu, Lin‐Wang Wang · 2017

The GW approximation is a well-known method to obtain the quasiparticle and spectral properties of systems ranging from molecules to solids. In practice, GW calculations are often employed with many different approximations and truncations…

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