Wei Xia

The dependence of mode-locking characteristics for 1.5 μ m laser on the composition ratio of WTe2/MoS2 SA

Yufan Qi, Jing Wang, Xin Li, Xi Zhang et autres

Heterojunctions take advantage of their tunable band structure, showing excellent optoelectronic properties and becoming a research hotspot in optoelectronic devices. In this work, saturable absorbers based on WTe2/MoS2 heterojunctions with three different ratios are successfully fabricated and characterized. The band structures and …

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Simultaneous reconstruction of displacement and optical feedback factor in self-mixing interferometry using GASF-based multi-task deep learning

Q. L. Li, Yuxuan Wang, Yuanheng Shi, Ruiqian Sun et autres

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Three-dimensional displacement measurement system based on FMCW self-mixing interferometry and FPGA technology

Kedi Wu, Ruiqian Sun, Wei Xia, Dongmei Guo

We introduce a system for three-dimensional (3D) displacement measurement based on frequency-modulated continuous-wave (FMCW) self-mixing interferometry (SMI) and field-programmable gate array (FPGA) technology. Through the integration of frequency division multiplexing and FPGA-based parallel processing, this system achieves real-time 3D displacement measurement with …

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Rapid Mechanochemical Synthesis of Oxyhalide Superionic Conductor: Time‐Resolved Structural Evolution (Small Methods 6/2026)

Denys Butenko, Jo-Chi Tseng, Xinyu Zhang, Pencheng Yu et autres

Front Cover Time-resolved structural evolution analysis of the mechanochemically synthesized oxyhalide superionic conductors provides crucial insights into reaction kinetics, microstructural transformations, and Li-ion transport pathways. By integrating high-energy ball milling with synchrotron X-ray scattering, the goal is to elucidate the impact of …

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Ultrahigh‐Response of WSe 2 Homojunction Photodetectors Induced by Ferroelectric Domains in Periodically Poled Lithium Niobate

Bo Wen, Jianyong Li, Jiawen Huang, Chao‐Dong Zhu et autres

Abstract This paper proposes a high‐performance photodetector based on a ferroelectric‐modulated homojunction coupled by periodically poled lithium niobate (PPLN) and WSe 2 . Through the synergistic effect of interface engineering and a periodic ferroelectric substrate, non‐volatile electrostatic doping of WSe 2 is …

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MLGF-GAN: a multi-level local-global feature fusion GAN for OCT image super-resolution

Tingting Han, Wenxuan Li, James R. Lang, Wenxia Zhang et autres

Optical coherence tomography (OCT), a non-invasive imaging modality, holds significant clinical value in cardiology and ophthalmology. However, its imaging quality is often constrained by inherently limited resolution, thereby affecting diagnostic utility. For OCT-based diagnosis, enhancing perceptual quality that emphasizes human visual recognition …

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Super-resolution reconstruction of OCT images based on frequency and spatial information in adversarial neural networks

Wei Xia, Tingting Han, Kuiyuan Tao, Wei Wang et autres

Abstract Objective. Optical coherence tomography (OCT) has a wide range of applications in the diagnosis and treatment of diseases such as heart and ophthalmic diseases. However, the inherent limitations of imaging hardware, low spatial sampling rates, and noise severely degrade image resolution …

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Rapid Mechanochemical Synthesis of Oxyhalide Superionic Conductor: Time‐Resolved Structural Evolution

Denys S. Butenko, Jochi Tseng, Xinyu Zhang, Peng Yu et autres

The design and synthesis of advanced solid electrolytes (SEs) underlie the development of safety and high-energy density all-solid-state batteries (ASSBs). Mechanochemical synthesis stands as the predominant method, yet it faces criticism due to its energy and time-intensive process (typically spanning several hours …

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Correlation of Energy-Band Structure and Slow-Saturable-Absorption Characteristics for 2D or Bulk TeSe2

Guoshun Li, Jing Wang, Jinbo Pang, Qianyong Zhang et autres

Laser modulation with the saturable absorption characteristics of two-dimensional (2D) materials has emerged as a research hotspot in recent years. However, to date, there has been little work truly explaining the macroscopic laser modulation phenomena of 2D materials based on their microscopic …

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Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array

Wei Xia, Jingyu Yu, Zhen Qian, Hui Hao et autres

This paper studied a multi-channel self-mixing interferometric vibration measurement system based on a vertical-cavity surface-emitting laser array. A 1 × 8 laser array was utilized to irradiate multiple positions of a vibrating target to establish independent measurement channels. The reflected light beams, …

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Challenges and Strategies of Low‐Pressure All‐Solid‐State Batteries

Jiaxu Zhang, Jiamin Fu, Pushun Lu, Guantai Hu et autres

All-solid-state batteries (ASSBs) are regarded as promising next-generation energy storage technology owing to their inherent safety and high theoretical energy density. However, achieving and maintaining solid-solid electronic and ionic contact in ASSBs generally requires high-pressure fabrication and high-pressure operation, posing substantial challenges …

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Laser self-mixing interferometry for dynamic displacement sensing of multiple targets

Meng Zhang, Jie Li, Zhanwu Xie, Wei Xia et autres

A multichannel laser self-mixing interferometry (SMI) is proposed based on a combination of linear injection current modulation and carrier frequency division multiplexing (FDM) technique. The laser output is split into several beams with each beam directed toward a specific target for measurement. …

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