Zhaokun Wang

Hebei University of Technology

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Changyu Shen

China Jiliang University

Feng Gao

Huazhong University of Science and Technology

Yunqiang Liu

Sichuan Agricultural University

Shengyu Xie

State Key Laboratory of Biotherapy

Yuan Yang

Sichuan University

D. N. Wang

China Jiliang University

Dachang Tao

State Key Laboratory of Biotherapy

Chunliu Zhao

China Jiliang University

Songtao Du

Shanghai Institute of Optics and Fine Mechanics

Shuo Chang

Chinese Academy of Medical Sciences & Peking Union Medical College

Cooperative Institutions

Chinese Academy of Sciences

China Jiliang University

University of Chinese Academy of Sciences

Sichuan University

Shanghai Institute of Materia Medica

Huazhong University of Science and Technology

University of Science and Technology Beijing

Zhejiang University

Peking University

Zhengzhou University

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Review—Recent Progress of Lithium-Rich Cation Disordered Rocksalt Cathode for High Performance Lithium-Ion Batteries

Journal of The Electrochemical Society (2024)

Jiashuai Wang Zhaokun Wang Haofeng Shi Chengdeng Wang Wang Zhi

The growing demand for energy storage application has facilitated the development of Li-ion rechargeable batteries (LIBs). As such, there is an urgent need to design electrodes with a high specific energy and long cycle life. The evolution of conventional LIBs cathode materials in past 30 years has arrived at a bottleneck. Fortunately, the finding of the lithium-rich cation disordered rocksalt (DRXs) has largely broadened the element ranges of the promising cathode in the past several years. Compared with the classical cation-ordered oxides, the DRXs display a large charge storage capacity based on both transition metal and oxygen redox capacity. In addition, their wide compositional space and cobalt-free characteristic would greatly reduce production costs in promoting the commercialization process. Herein, we make an overview of the recent progress for DRXs materials, in terms of their compositions and structure, Li diffusion, charge storage mechanisms, and different redox centra-based system. The key challenges to practical application are also discussed. Last but not least, in order to design high-performance DRXs, we outlined perspectives in developing DRXs for the next generation of LIB cathodes.

10.1149/1945-7111/ad3aea

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Citations (0)

Tunable erbium-doped fiber laser based on optical fiber Sagnac interference loop with angle shift spliced polarization maintaining fibers

Optical Fiber Technology (2018)

Zhenming Ding Zhaokun Wang Chunliu Zhao D. N. Wang

Polarization controller

Fibre optic gyroscope

10.1016/j.yofte.2018.02.006

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Citations (16)

Quantum-Enhanced Signal-to-Noise Ratio Fiber Bending Sensor Utilizing Intensity Correlated Pulse Twin Beams

IEEE Sensors Journal (2021)

Hailong Wang Qiong Fan Chunliu Zhao Xiong Zhang Zhaokun Wang

We have experimentally proposed and implemented a fiber bending sensor with quantum-enhanced signal-to-noise ratio (SNR), which stems from the combination of single-mode fiber (SMF) taper and intensity correlated pulse twin beams. One beam from pulse twin beams is coupled into the SMF taper to obtain a bending-induced loss, while the other beam is also attenuated correspondingly by a variable optical attenuator to ensure maximum noise cancellation. Along this line, intensity-difference noise power between pulse twin beams is always reduced below standard quantum limit (SQL), and thus a higher SNR value compared with the corresponding double-channel light source can be realized. In this work, the three different SMF tapers with the waist diameters of

$85.1~\mu \text{m}$

$74.9~\mu \text{m}$

, and

$67.3~\mu \text{m}$

, respectively have been prepared by a fusion splicer. The experimental results show that in the bending range of 0–20 m⁻¹, the SMF taper with

$67.3~\mu \text{m}$

waist diameter shows the highest sensitivity of 0.105 dB/m⁻¹, the resolution of 0.095 m⁻¹, and its SNR value is enhanced by a maximal factor of 2.84 dB compared with the corresponding classical counterpart. The present bending proposal may find potential applications in monitoring the bending deformation of building structure, roadbed settlement, medical and health, etc.

10.1109/jsen.2021.3135925

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Citations (2)

Tunable and Switchable Narrow Bandwidth Semiconductor-Saturable Absorber Mirror Mode-Locked Yb-Doped Fiber Laser Delivering Different Pulse Widths

Chinese Physics Letters (2016)

Zhaokun Wang Feng Zou Ziwei Wang Songtao Du Jun Zhou

The wavelength-tunable and switchable narrow bandwidth mode-locking operation is demonstrated in an all fiber laser based on semiconductor-saturable absorber mirror (SESAM). Two narrow-band fiber Bragg gratings centered at 1029.9 nm and 1032 nm respectively with a polarization controller inserted between them are used to realize the wavelength switchable between 1029.9 nm and 1032 nm. The laser delivers different pulse widths of 7.5 ps for 1030 nm and 20 ps for 1032 nm. The maximum output power for both could reach ~6.5 mW at single pulse operation. The output wavelength could be tuned to about 0.9 nm intervals ranging from 1030.2 nm to 1031.1 nm and from 1032.15 nm to 1033.7 nm with the temperature change of the fiber Bragg grating, respectively.

Fiber Bragg Grating

Saturable absorption

Polarization controller

10.1088/0256-307x/33/3/034202

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Citations (5)

Mode-locked Tm fiber laser using SMF-SIMF-GIMF-SMF fiber structure as a saturable absorber

Optics Express (2017)

Huanhuan Li Zhaokun Wang Can Li Junjie Zhang Shiqing Xu

We demonstrate a mode-locked all-fiber Tm laser using a single mode-step index multimode-graded-index multimode-single mode fiber structure as a saturable absorber based on the nonlinear multimodal interference. Stable fundamentally mode-locking operation was obtained at a pump threshold of 180mW. The output soliton pulses had a center wavelength, spectral width, pulse duration, and repetition rate of 1888 nm, 3.6 nm, 1.4 ps, and19.82 MHz, respectively. This is a simple, low-cost, stable, and convenient laser oscillator with many potential applications in eye-safe ultrafast photonics.

Saturable absorption

Mode-Locking

10.1364/oe.25.026546

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Citations (100)

A study of asymmetric guided wave propagation mechanism in elbow and prediction of elbow erosion degree based on SAFE and GA-LSSVM methods

Measurement (2024)

Zhaokun Wang Ning Li Sizhu Zhou

Degree (music)

10.1016/j.measurement.2024.115542

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Citations (1)

Tunable dual-wavelength passively mode-locked thulium-doped fiber laser using carbon nanotube

Optical Engineering (2016)

Chuanning Niu Zhaokun Wang Jiayang Zhang Ting Yu Jun Zhou

A tunable dual-wavelength passively mode-locked thulium-doped fiber laser (TDFL) based on single-wall carbon nanotube is demonstrated. By properly tuning the pump power and the polarization controller, both single- and dual-wavelength mode-locked operation can be achieved. The repetition rates of the single- and dual-wavelength mode-locked operation are both 17.64 MHz. The duration of the ultrashort soliton pulse is about 3.7 ps. By appropriately adjusting the polarization state of the laser, the dual wavelength can be tuned from 1879.8 and 1894.5 nm to 1903.3 and 1914.1 nm.

Polarization controller

Thulium

Mode-Locking

10.1117/1.oe.55.10.106115

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Citations (13)

Mendelian randomization study revealed a gut microbiota-neuromuscular junction axis in myasthenia gravis

Scientific Reports (2024)

Jiaying Shi Ming Yi Shengyu Xie Zhaokun Wang Xinyue Zhang

Abstract A growing number of studies have implicated that gut microbiota abundance is associated with myasthenia gravis (MG). However, the causal relationship underlying the associations is still unclear. Here, we aim to investigate the causal effect of gut microbiota on MG using Mendelian randomization (MR) method. Publicly available Genome-wide association study (GWAS) summary-level data for gut microbiota and for MG were extracted. Inverse variance weighted was used as the main method to analyze causality. The robustness of the results was validated with sensitivity analyses. Our results indicated that genetically predicted increased phylum Lentisphaerae (OR = 1.319, p = 0.026), class Lentisphaerae (OR = 1.306, p = 0.044), order Victivallales (OR = 1.306, p = 0.044), order Mollicutes (OR = 1.424, p = 0.041), and genus Faecalibacterium (OR = 1.763, p = 0.002) were potentially associated with a higher risk of MG; while phylum Actinobacteria (OR = 0.602, p = 0.0124), class Gammaproteobacteria (OR = 0.587, p = 0.036), family Defluviitaleaceae (OR = 0.695, p = 0.047), family Peptococcaceae (OR = 0.698, p = 0.029), and family Family XIII (OR = 0.614, p = 0.017) were related to a lower risk of MG. The present study provides genetic evidence for the causal associations between gut microbiota and MG, thus suggesting novel insights into the gut microbiota-neuromuscular junction axis in the pathogenesis of MG.

Mendelian Randomization

Genome-wide Association Study

Clostridiales

10.1038/s41598-024-52469-7

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Citations (1)

All fiber spatiotemporal mode-locked fiber laser at 1.55 μm delivering multimode conventional solitons or bound solitons

Optics & Laser Technology (2022)

Tiegang Guo Zhaokun Wang Feng Gao Chunliu Zhao Shuo Chang

Polarization controller

Realization (probability)

10.1016/j.optlastec.2022.108093