A5103026331- Glass properties and applications
- Solid State Laser Technologies
- Photonic Crystal and Fiber Optics
- Luminescence Properties of Advanced Materials
- Electrocatalysts for Energy Conversion
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Semiconductor Lasers and Optical Devices
- Laser Material Processing Techniques
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Spectroscopy and Laser Applications
- Anomaly Detection Techniques and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Neural Networks and Applications
- Conducting polymers and applications
- Particle Dynamics in Fluid Flows
- Nuclear materials and radiation effects
- Perovskite Materials and Applications
- Graphene research and applications
- Carbon dioxide utilization in catalysis
- Digital Radiography and Breast Imaging
Harbin Engineering University
2019-2025
Tianjin Chengjian University
2025
Northwest University
2021-2024
Xi'an Jiaotong University
2024
Ocean University of China
2024
Ministry of Education of the People's Republic of China
2021-2023
Material (Belgium)
2021
Education Northwest
2021
State Key Laboratory on Integrated Optoelectronics
2016-2020
Jilin University
2016-2020
High power mid-infrared supercontinuum (SC) laser sources are important for a wide range of applications in sensing, spectroscopy, imaging, defense, and security. Despite recent advances on high SC using fluoride fibers, the lack fibers with good chemical thermal stability remains significant technological challenge. Here we show that all solid fluorotellurite developed can be used as nonlinear media constructing 10-W-level sources. All fabricated by rod-in-tube method. The core cladding...
Water splitting is important to the conversion and storage of renewable energy, but slow kinetics oxygen evolution reaction (OER) greatly limits its utility. Here, under visible light illumination, p‐n WO 3 /SnSe 2 (WS) heterojunction significantly activates OER catalysis CoFe‐layered double hydroxide (CF)/carbon nanotubes (CNTs). Specifically, catalyst achieves an overpotential 224 mV at 10 mA cm −2 a small Tafel slope 47 dec −1 , superior RuO most previously reported transition metal‐based...
Metal–organic frameworks (MOFs) have emerged as a promising class of catalysts due to their large specific surface area, high porosity, and dispersed metal sites. However, the inherent low electrical conductivity organic ligands limits application electrocatalysts. Herein, we constructed trimetal FeCoNi MOF/NF catalyst for oxygen evolution reaction (OER) on nickel foam substrates by electrodeposition hydrothermal methods. The shows unique self-optimization phenomenon, which originates from...
Ho <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3+</sup> -doped fluoroindate glass fibers (FIGFs) based on InF <sub xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> -GaF -ZnF xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> -BaF -SrF -YF -LiF-PbF glasses were fabricated by using a rod-in-tube method. By 92-cm-long FIGF as the gain medium and 1120-nm fiber laser pump source, lasing at 2875 nm was obtained for threshold power of 278 mW....
A black phosphorus (BP) functionalized optical fiber sensor based on a microfiber coil resonator (MCR) for Pb2+ ion detection in an aquatic environment is presented and experimentally demonstrated. The MCR-BP manufactured by winding tapered hollow rod composed of low-refractive-index polycarbonate (PC) resin with the BP deposited internal wall rod. Based propagation properties MCR, chemical interaction between ions alters refractive index ambient thus results detectable shift transmission...
Ho3+/Pr3+ co-doped AlF3-based glass fibers were fabricated by using a rod-in-tube method based on the matrix composition of AlF3-BaF2-CaF2-YF3-SrF2-MgF2-LiF-ZrF4-PbF2. Under pump 1150 mW Raman fiber laser, 2.9 µm laser was observed in 19 cm long with an output power 173 and slope efficiency 10.4%. glasses to investigate deactivation effects Pr3+ ions Ho3+:5I7 level. Our results showed that are potential gain media for ∼2.9µm lasers.
To the best of our knowledge, we report here first demonstration 2.9 µm laser emission from in-house fabricated Ho3+/Pr3+ co-doped ZBYA glass fiber. The fiber was based on with compositions ZrF4-BaF2-YF3-AlF3-PbF2-HoF3-PrF3. Under pump a 1150 nm Raman laser, maximum unsaturated output power 2.16 W obtained in 15 cm long gain slope efficiency 24%. influence rare-earth doping concentration performance also investigated. result indicates that fibers have potential for using as fluorozirconate...
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Intense mid-infrared emission at 3.9 µm in Ho3+-doped ZBYA glasses with direct upper laser level (Ho3+:5I5) pumping a wavelength of 888 nm is reported for the first time, to best our knowledge. Spectroscopic parameters were determined using Judd-Ofelt theory and measured absorption spectrum. The maximum cross section glass estimated be 2.7×10-21cm2 3906 nm. Additionally, fluorescence spectra lifetimes different Ho3+ ion doping concentrations measured. results provide theoretical experimental...
Broadband emission at 2.7 µm is observed in an Er3+-doped PbO-PbF2-Bi2O3-Ga2O3 glass. The measured band full-width-at-half-maximum (FWHM) ∼184.4nm, approximately 36 nm wider than that of fluoride glasses. intensity almost twice as strong peak values and absorption cross-sections are calculated to be 1.54×10-20cm2 1.19×10-20cm2, respectively. This oxyfluoride heavy metal glass shows potential broadband mid-infrared gain material.
In this paper, laser emission at 3.92 μm in heavily-holmium-doped fluoride fibers using 888 nm and 1660 as pumping sources is investigated through numerical modeling. The dual-wavelength system has lower threshold higher slope efficiency than the single-wavelength nm. addition, can decrease heat load due to input influencing energy transfer up-conversion cross-relaxation processes effectively, which indicates possibility of raising heat-damage providing high-power generation. This research...