Chao Wang
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View article: Shape‐Topology‐Driven Design of Deep Ultraviolet Nonlinear Optical Crystals: Engineering [CH <sub>3</sub> PO <sub>3</sub> ]–Metal‐Oxo Layered Frameworks for Enhanced SHG, DUV Transparency
Shape‐Topology‐Driven Design of Deep Ultraviolet Nonlinear Optical Crystals: Engineering [CH <sub>3</sub> PO <sub>3</sub> ]–Metal‐Oxo Layered Frameworks for Enhanced SHG, DUV Transparency Open
Designing deep ultraviolet (DUV) nonlinear optical (NLO) crystals that balance high nonlinear coefficients, moderate birefringence, and DUV transparency remains a major challenge. Here, we introduce a shape‐topology‐driven strategy to desi…
View article: All-optical dispersive Fourier analysis for ultrafast user localization at 50 MHz in beam-steered optical wireless communication
All-optical dispersive Fourier analysis for ultrafast user localization at 50 MHz in beam-steered optical wireless communication Open
Beam-steered optical wireless communication (OWC) enables high-capacity indoor links where real-time user localization is crucial. We propose and experimentally demonstrate an all-optical method for ultrafast localization operating at 50 M…
View article: Sun meridian extraction from skylight polarization patterns via mirror symmetry and jump-line fusion
Sun meridian extraction from skylight polarization patterns via mirror symmetry and jump-line fusion Open
Accurate extraction of the solar meridian from skylight polarization patterns remains challenging under variable atmospheric conditions. To address this limitation, we develop a computational framework that synergistically integrates two f…
View article: Sun meridian extraction from skylight polarization patterns via mirror symmetry and jump-line fusion
Sun meridian extraction from skylight polarization patterns via mirror symmetry and jump-line fusion Open
Accurate extraction of the solar meridian from skylight polarization patterns remains challenging under variable atmospheric conditions. To address this limitation, we develop a computational framework that synergistically integrates two f…
View article: Development of a fatigue performance test device for materials in high-temperature oxygen-containing environments
Development of a fatigue performance test device for materials in high-temperature oxygen-containing environments Open
A modular high-temperature fatigue test equipment was developed based on electromagnetic induction heating technology. The equipment was used to conduct low-cycle fatigue tests on Inconel 718 alloy, a typical material for aircraft engine t…
View article: Multi-layer 5D Optical Data Storage: Mathematical Modeling and Deep Learning-Based Reconstruction of Birefringent Parameters
Multi-layer 5D Optical Data Storage: Mathematical Modeling and Deep Learning-Based Reconstruction of Birefringent Parameters Open
Five-dimensional (5D) optical data storage has emerged as a promising technology for ultra-high-density, long-term data archiving. However, its practical realization is hindered by noise and interference during data readout. In this work, …
View article: Ultrafast Time-Stretch Optical Coherence Tomography Using Reservoir Computing for Fourier-Free Signal Processing
Ultrafast Time-Stretch Optical Coherence Tomography Using Reservoir Computing for Fourier-Free Signal Processing Open
Swept-source optical coherence tomography (SS-OCT) is a widely used imaging technique, particularly in medical diagnostics, due to its ability to provide high-resolution cross-sectional images. However, one of the main challenges in SS-OCT…
View article: Dynamic correction of endoscopic imaging of high-speed turbine rotor blades based on calibration of the grayscale gradient function
Dynamic correction of endoscopic imaging of high-speed turbine rotor blades based on calibration of the grayscale gradient function Open
View article: Study on Energy Allocation Strategy of Multiple Electrolyzers for Renewable Energy-Based Hydrogen Production System
Study on Energy Allocation Strategy of Multiple Electrolyzers for Renewable Energy-Based Hydrogen Production System Open
In the context of the Carbon Peaking and Carbon Neutrality Goals, the utilization of renewable energy to produce hydrogen by water electrolysis is of great significance as it can solve the problems of renewable energy consumption and large…
View article: Modeling the impact of temperature-dependent thermal conductivity on hydrogen desorption from magnesium hydride
Modeling the impact of temperature-dependent thermal conductivity on hydrogen desorption from magnesium hydride Open
View article: High-accuracy analytic characterization of whispering gallery modes based on modified quantum potential
High-accuracy analytic characterization of whispering gallery modes based on modified quantum potential Open
View article: Efficient Hydrogen Production by Aqueous Phase Reforming of Ethylene Glycol over Ni-W Catalysts with Enhanced C-C Bond Cleavage Activity
Efficient Hydrogen Production by Aqueous Phase Reforming of Ethylene Glycol over Ni-W Catalysts with Enhanced C-C Bond Cleavage Activity Open
Cleavage of C-C bonds is crucial for hydrogen production via aqueous phase reforming of biomass-derived oxygenates. In this study, the hydrogen production performance and C-C bond cleavage capacity of Ni-W/AC catalysts with varying W/Ni ra…
View article: Power-speed coupling response characteristics of variable speed pumped storage unit under pumping mode
Power-speed coupling response characteristics of variable speed pumped storage unit under pumping mode Open
Variable speed pumped storage unit (VSPSU) has the advantage of adjustable power under pumping mode, which can better meet the regulation demand of power grid. This paper aims to study the power-speed coupling response characteristics (CRC…
View article: Hierarchical Time-Aware Mixture of Experts for Multi-Modal Sequential Recommendation
Hierarchical Time-Aware Mixture of Experts for Multi-Modal Sequential Recommendation Open
Multi-modal sequential recommendation (SR) leverages multi-modal data to learn more comprehensive item features and user preferences than traditional SR methods, which has become a critical topic in both academia and industry. Existing met…
View article: Monte Carlo simulations of proton-induced displacement damage in SiGe alloys and SiGe/Si heterostructures
Monte Carlo simulations of proton-induced displacement damage in SiGe alloys and SiGe/Si heterostructures Open
SiGe-based electronics have a promising prospect in the field of space exploration due to the controllable bandgap of SiGe alloys and high compatibility with Si technology. However, they may be susceptible to the influence of energetic par…
View article: High-temperature and high-pressure fabrication of TC4–B4C composites: enhanced mechanical properties and environmental resistance
High-temperature and high-pressure fabrication of TC4–B4C composites: enhanced mechanical properties and environmental resistance Open
View article: Synthetic Aperture Radar Analysis Ready Data （SAR ARD）： Progress， challenges and prospects
Synthetic Aperture Radar Analysis Ready Data （SAR ARD）： Progress， challenges and prospects Open
View article: A 100 Hz, 4.71 mJ, 3.8 μm, narrow-linewidth, electro-optic <i>Q</i> -switched self-optical parametric oscillator based on Nd:MgO:PPLN crystal
A 100 Hz, 4.71 mJ, 3.8 μm, narrow-linewidth, electro-optic <i>Q</i> -switched self-optical parametric oscillator based on Nd:MgO:PPLN crystal Open
This paper introduces a high single-pulse energy, narrow-linewidth mid-infrared self-optical parametric oscillator (mid-IR SOPO) with a cavity length of 120 mm and a Nd:MgO:PPLN crystal. To achieve high single-pulse energy and high peak po…
View article: An Ultrafast Optical Imaging System with Anamorphic Transformation Based on STEAM Structure
An Ultrafast Optical Imaging System with Anamorphic Transformation Based on STEAM Structure Open
The time-stretch (TS) imaging system is one type of ultrafast optical imaging system that enables imaging with an unprecedented imaging speed of tens of hundreds of megahertz. The TS imaging achieves linear one-to-one mapping between wavel…
View article: Rethinking of Underwater Image Restoration Based on Circularly Polarized Light
Rethinking of Underwater Image Restoration Based on Circularly Polarized Light Open
Polarimetric imaging technology plays a crucial role in de-scattering, particularly in the field of underwater image restoration. Circularly polarized light (or the underlying circular polarization memory effect) has been proven to better …
View article: Enhancing Signal Recognition Accuracy in Delay-Based Optical Reservoir Computing: A Comparative Analysis of Training Algorithms
Enhancing Signal Recognition Accuracy in Delay-Based Optical Reservoir Computing: A Comparative Analysis of Training Algorithms Open
To improve the accuracy of signal recognition in delay-based optical reservoir computing (RC) systems, this paper proposes the use of nonlinear algorithms at the output layer to replace traditional linear algorithms for training and testin…
View article: Shifting the ISAC Trade-Off with Fluid Antenna Systems
Shifting the ISAC Trade-Off with Fluid Antenna Systems Open
As an emerging antenna technology, a fluid antenna system (FAS) enhances spatial diversity to improve both sensing and communication performance by shifting the active antennas among available ports. In this letter, we study the potential …
View article: Investigation on multi-pulse femtosecond laser scribing of copper: Analysis of ablation grooves development and modeling modification
Investigation on multi-pulse femtosecond laser scribing of copper: Analysis of ablation grooves development and modeling modification Open
A theoretical and experimental investigation on femtosecond laser multi-pulse scribing of copper will provide valuable insights for improving laser machining quality in practical applications. This study enhanced a two-temperature model by…
View article: Swarm intelligence: A survey of model classification and applications
Swarm intelligence: A survey of model classification and applications Open
Swarm Intelligence (SI) is a collective behavior that emerges from interaction between individuals in a group. Typical SI includes fish schooling, ant foraging, bird migration, and so on. A great deal of models have been introduced to char…
View article: Self-injection locking dual-DFB lasers based on a micro-resonator for ultra-low noise microwave generation
Self-injection locking dual-DFB lasers based on a micro-resonator for ultra-low noise microwave generation Open
A novel scheme for generating ultra-narrow linewidth and ultra-low noise photonic microwave based on simultaneous self-injection locking of dual DFB lasers is proposed and demonstrated. Herein, two narrow linewidth DFB lasers can be indepe…
View article: Tolerant Packaging of Multimode Fiber for Reliable Singlemode Lab-on-A-Chip Sensor System
Tolerant Packaging of Multimode Fiber for Reliable Singlemode Lab-on-A-Chip Sensor System Open
View article: A Deep Reinforcement Learning Approach for Joint Scheduling of Cascade Reservoir System
A Deep Reinforcement Learning Approach for Joint Scheduling of Cascade Reservoir System Open
View article: Estimation of Heating Load Consumption in Residual Buildings using Optimized Regression Models Based on Support Vector Machine
Estimation of Heating Load Consumption in Residual Buildings using Optimized Regression Models Based on Support Vector Machine Open
Accurate energy consumption forecasting and assessing retrofit options are vital for energy conservation and emissions reduction. Predicting building energy usage is complex due to factors like building attributes, energy systems, weather …
View article: Geometric external calibration method for the airborne large-view-field infrared scanner considering different effects of left and right pendulum directions
Geometric external calibration method for the airborne large-view-field infrared scanner considering different effects of left and right pendulum directions Open
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View article: Enhancing Signal Recognition Accuracy in Delay-Based Optical Reservoir Computing:A Comparative Analysis of Training Algorithms
Enhancing Signal Recognition Accuracy in Delay-Based Optical Reservoir Computing:A Comparative Analysis of Training Algorithms Open