Weidong Wu

Shanxi Academy of Medical Sciences

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Yongjian Tang

Cornell University

Xuemin Wang

China Academy of Engineering Physics

Xiaodong Jiang

Qingdao University

Jin Huang

Shanghai Pudong New Area Gongli Hospital

Wanguo Zheng

Chongqing University

Jiangshan Luo

Jiangsu University

Liping Peng

Northwest Normal University

Xin Ye

China Academy of Engineering Physics

Jicheng Zhang

Wayne State University

Laixi Sun

China Academy of Engineering Physics

Cooperative Institutions

China Academy of Engineering Physics

171

Chinese Academy of Sciences

134

Sichuan University

Laser Fusion Research Center

Shanghai Jiao Tong University

Huazhong University of Science and Technology

University of Shanghai for Science and Technology

Xinxiang Medical University

Southwest University of Science and Technology

University of Chinese Academy of Sciences

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Surface Morphology Study of Chemical Vapor Transport of ZnO Crystals

Scanning (2018)

Long Fan Jia Li Dawei Yan Liping Peng Tao Jiang

A chemical vapor transport (CVT) method was implemented to grow bulk ZnO crystals. X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), and optical microscope (OM) studies were carried out to characterize the surface properties of the grown crystal. The XRD result indicated the exposed solid-vapor interface of the as-grown crystal was composed of (0001) and [Formula: see text] faces. Using SEM and OM, we observed small hexagonal pyramids and microstructures formed of crosslines on the as-grown crystal and found hexagonal thermal etching pits on the surfaces of seed crystals. The formation, evolution, and distribution mechanisms of the microstructures were investigated.

Morphology

10.1155/2018/2602596

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Citations (4)

H₂ ADSORPTION ON LiB (001) SURFACE: A FIRST PRINCIPLES CALCULATION

Journal of Theoretical and Computational Chemistry (2012)

Weibin Zhang Weidong Wu Xinlu Cheng Xuemin Wang Hai‐Ping Wang

The adsorption behavior of H 2 on the LiB (001) surface was investigated with density functional theory (DFT) method. It was found that the site of H 2 adsorbed on the Li-B bridge II was easier than the other four sites ( Li top, B top, hollow vertical and Li-B bridge I). H 2 adsorbed on the Li-B bridge II site was a strong chemical adsorption. The adsorption energy was 2.190 eV, and the H , B atoms exhibited covalent characteristics, the H – H atoms have a little interaction, and the H 2 was 0.331 Å below the surface of Li-B bridge II. The charge density, band structure, totals and partial density of states were calculated utilizing the first principle method. These calculations showed that the H interacted with the surface atoms, and partially saturated the dangling bonds with the surface atoms. The interaction between H and the surface atoms were mainly attributed to the H 1 s, B 2 s and B 2 p states. The calculated band gap was 0.075 eV and 0.199 eV before and after adsorption.

Dangling bond

Charge density

10.1142/s0219633612500526

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Citations (3)

The investigation of integrated SAW strain sensor based on AlN/TC4 structure

Sensors and Actuators A Physical (2019)

Lin Shu Xuemin Wang Ling Li Dawei Yan Liping Peng

Hysteresis

Strain (injury)

10.1016/j.sna.2019.04.012

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Citations (25)

Surface modification and etch process optimization of fused silica during reaction CHF3–Ar plasma etching

Optik (2015)

Laixi Sun Jin Huang Xin Ye Hongjie Liu Fengrui Wang

Surface Modification

Plasma Etching

10.1016/j.ijleo.2015.10.046

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Citations (16)

Intramolecular charge transfer tuning of azo dyes: Spectroscopic characteristic and third-order nonlinear optical properties

Dyes and Pigments (2018)

Baili Chen Shuang Ni Laixi Sun Xuan Luo Qingjun Zhang

Hyperpolarizability

Thermogravimetric analysis

10.1016/j.dyepig.2018.05.063

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Citations (53)

Ultralight electrospun cellulose sponge with super-high capacity on absorption of organic compounds

Carbohydrate Polymers (2017)

Tao Xu Zhao Wang Yichun Ding Wenhui Xu Weidong Wu

Environmentally Friendly

10.1016/j.carbpol.2017.09.086

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Citations (50)

Transient absorption and luminescence spectra of K9 glass at sub-damage site by ultraviolet laser irradiation

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (2013)

Zhen Zhang Jin Huang Feng Geng Xinda Zhou Shiquan Feng

Ultraviolet

Photon energy

10.1016/j.nimb.2013.09.025

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Citations (3)

Influence of subsurface defects on damage performance of fused silica in ultraviolet laser

Optical Engineering (2013)

Jin Huang Xinda Zhou Hongjie Liu Fengrui Wang Xiaodong Jiang

In ultraviolet pulse laser, damage performance of fused silica optics is directly dependent on the absorptive impurities and scratches in subsurface, which are induced by mechanical polishing. In the research about influence of subsurface defects on damage performance, a series of fused silica surfaces with various impurity concentrations and scratch structures were created by hydrofluoric (HF) acid solution etching. Time of Flight secondary ion mass spectrometry and scanning probe microprobe revealed that with increasing etching depth, impurity concentrations in subsurface layers are decreased, the scratch structures become smoother and the diameter:depth ratio is increased. Damage performance test with 355-nm pulse laser showed that when 600 nm subsurface thickness is removed by HF acid etching, laser-induced damage threshold of fused silica is raised by 40 percent and damage density is decreased by over one order of magnitude. Laser weak absorption was tested to explain the cause of impurity elements impacting damage performance, field enhancement caused by change of scratch structures was calculated by finite difference time domain simulation, and the calculated results are in accord with the damage test results.

Hydrofluoric acid

Scratch

Ultraviolet

Microprobe

10.1117/1.oe.52.2.024203

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Citations (17)

Failure mechanism of glass-fiber reinforced laminates influenced by the copper film in three-point bending

International Journal of Adhesion and Adhesives (2018)

Pengliang Hou Anran Zhao Weidong Wu Haixiang Huan Cong Li

Acoustic Emission

10.1016/j.ijadhadh.2018.05.006

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Citations (8)

Low-loss polarization-maintaining terahertz fiber based on central air hole movements

Optical Engineering (2018)

Zhiqing Wu Qingzhi Li Handing Xia Zhaohua Shi Xiaoyan Zhou

We report a type of single-hole core photonic crystal fiber for low-loss polarization-maintaining terahertz (THz) wave guidance. Simulation results show that high birefringence at a level of 10 − 2 can be obtained by a design of minor position adjustment of the central air hole. Low effective material loss can be achieved because of the introduced central air hole. The strategy of the central air hole movements is also applicable for the three-hole core THz photonic crystal fibers. Other transmission characteristics including single-mode condition, power fraction, confinement loss, and dispersion were discussed in detail. It is quite clear that the proposal facilitates the fabrication process due to the simple structure.

10.1117/1.oe.57.4.046113

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Citations (1)