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33 results on '"刘卫国"'

1. 铌酸锂微纳米结构的制备与分析

Author

唐汇诗 Tang Huishi, 陈智利 Chen Zhili, 唐黎 Tang Li, 惠迎雪 Hui Yingxue, and 刘卫国 Liu Weiguo

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2023

3. 离子束抛光去除边界效应延拓修正研究

Author

周迪 Zhou Di, 蒋世磊 Jiang Shilei, 孙国斌 Sun Guobin, 康乐 Kang Le, and 刘卫国 Liu Weiguo

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics
Published
2022

4. 数字全息测量系统的散斑噪声抑制

Author

牛瑞 Niu Rui, 田爱玲 Tian Ailing, 王大森 Wang Dasen, 刘丙才 Liu Bingcai, 王红军 Wang Hongjun, 钱晓彤 Qian Xiaotong, and 刘卫国 Liu Weiguo

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics
Published
2022

5. 分布式红外阵列相机的超分辨图像重建研究

Author

谢一博 Xie Yibo, 徐乃涛 Xu Naitao, 周顺 Zhou Shun, 姚斯齐 Yao Siqi, 余自然 Yu Ziran, 程进 Cheng Jin, and 刘卫国 Liu Weiguo

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics
Published
2022

7. Evolution of sapphire surface nanostructure with distance of impurity target

Author

陈智利 Zhili Chen, 惠迎雪 Yingxue Xi, 刘卫国 Weiguo Liu, 刘雨昭 Yuzhao Liu, 毕倩 Qian Bi, and 唐黎 Li Tang

Subjects
Materials science, Nanostructure, Ion beam, Aerospace Engineering, Molecular physics, Atomic and Molecular Physics, and Optics, Ion source, Electron cyclotron resonance, X-ray photoelectron spectroscopy, Space and Planetary Science, Impurity, Surface roughness, Sapphire, Electrical and Electronic Engineering
Abstract

Electron cyclotron resonance ion source has been employed to etch the surface of sapphire (C-cut), introducing metallic stainless steel impurities to investigate the evolution law and optical properties of the self-organized nanostructure on the sapphire surface at different target distances. The atomic force microscope was used to observe the morphological changes of the sample surface, the Taylor Surf CCI 2000 white light interference surface measuring instrument was used to measure the surface roughness; X-ray photoelectron spectroscopy was selected to characterize the chemical composition. The experimental results indicate that, with the ion beam energy of 1000 eV, the beam current density of 487 μA/cm2, the oblique incident angle of 65°, and the erosion duration of 60 min, the distance between the sapphire sample and the impurity target increases from 1 cm to 4 cm, island-like structures appear on the sample surface and gradually evolve into continuous ripple structures. At the same time, as the target distance increases, the orderliness of the self-organized nanostructures enhances, the longitudinal height gradually decreases, while the spatial frequency is unchanged. There are very few metal impurities on the etched sample surface. The appearance of microstructures has antireflection effect on sapphire. During the ion beam sputtering process, island-like structures promotes the growth of ripple nanostructures but destroys orderliness.

Published
2021

10. Research Progress in Preparation of Optical Thin Films by PECVD

Author

刘卫国 Liu Weiguo, 杭良毅 Hang Liangyi, 周顺 Zhou Shun, and 杭凌侠 Hang Lingxia

Subjects
Materials science, Plasma-enhanced chemical vapor deposition, business.industry, Optoelectronics, Electrical and Electronic Engineering, Thin film, business, Atomic and Molecular Physics, and Optics
Published
2020

11. Processing technology of cutting ZnS crystal

Author

徐超 Chao Xu, 李世杰 Shijie Li, 黄岳田 Yuetian Huang, 刘卫国 Weiguo Liu, and 王守义 Shouyi Wang

Subjects
Crystal, Materials science, business.industry, Space and Planetary Science, Optoelectronics, Aerospace Engineering, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics
Published
2020

12. Laser Speckle Suppression Based on Tunable Metasurface

Author

程进 Jin Cheng, 孙雪平 Xue-ping Sun, 周顺 Shun Zhou, 徐英舜 Ying-shun Xu, 孙其梁 Qi-liang Sun, 蒲欣欣 Xin-xin Pu, and 刘卫国 Weiguo Liu

Subjects
Speckle pattern, Materials science, Optics, business.industry, business, Atomic and Molecular Physics, and Optics
Published
2020

13. Ion Beam Polishing Equivalent Removal and Polishing Experiments

Author

党小刚 Dang Xiaogang, 刘卫国 Liu Weiguo, 蒋世磊 Jiang Shilei, 王玉宁 Wang Yuning, and 孙国斌 Sun Guobin

Subjects
Materials science, Ion beam, Polishing, Electrical and Electronic Engineering, Composite material, Atomic and Molecular Physics, and Optics
Published
2020

14. Ecological response and adaptation mechanism of Phragmites australis to changes in groundwater level

Author

刘建国 Liu Jianguo, 李宏侠 Li Hongxia, 徐悦 Xu Yue, 霍举颂 Huo Jusong, 玛丽娅·奴尔兰 Maria·Nurlan, 刘卫国 Liu Weiguo, and 张雨 Zhang Yu

Subjects
Phragmites, Ecology, Mechanism (biology), 0208 environmental biotechnology, Environmental science, 02 engineering and technology, Adaptation, Ecology, Evolution, Behavior and Systematics, Groundwater, 020801 environmental engineering
Published
2018

16. Study on classification and detection of supersmooth surface defects

Author

朱学亮 Zhu Xueliang, 田爱玲 Tian Ailing, 王红军 Wang Hongjun, 刘丙才 Liu Bing-cai, 解格飒 Xie Gesa, 王大森 Wang Da-sen, and 刘卫国 Liu Weiguo

Subjects
Surface (mathematics), Optics, Materials science, Space and Planetary Science, business.industry, Aerospace Engineering, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics
Published
2019

17. Characteristics of Near-infrared Induced Transmission Enhancement of Thin Film Micro-structures

Author

刘卫国 Liu Weiguo, 周顺 Zhou Shun, 李世杰 Li Shi-jie, 张进 Zhang Jin, 杨鹏飞 Yang Peng-fei, 葛少博 Ge Shao-bo, 黄岳田 Huang Yue-tian, 孙雪平 Sun Xueping, and 林大斌 Lin Da-bin

Subjects
Materials science, Transmission (telecommunications), business.industry, Near-infrared spectroscopy, Optoelectronics, Thin film, business, Micro structure, Atomic and Molecular Physics, and Optics
Published
2019

18. Experimental Research on Sapphire Crystal Induced by Low Energy Kr+ Ion Beam

Author

陈智利 Chen Zhi-li, 刘雨昭 Liu Yu-zhao, 刘卫国 Liu Weiguo, 费芒芒 Fei Mang-mang, and 惠迎雪 Xi Ying-xue

Subjects
Crystal, Materials science, Low energy, Ion beam, business.industry, Sapphire, Optoelectronics, business, Atomic and Molecular Physics, and Optics, Experimental research
Published
2019

20. Surface Defect Detection of Optical Components Based on Sparse Matrix

Author

刘卫国 Liu Weiguo, 朱学亮 Zhu Xueliang, 王红军 Wang Hongjun, 刘丙才 Liu Bing-cai, 王大森 Wang Da-sen, 田爱玲 Tian Ailing, and 陈晨 Chen Chen

Subjects
Surface (mathematics), Materials science, Electrical and Electronic Engineering, Biological system, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Sparse matrix
Published
2019

21. Irradiation of Sapphire Under Different Kr +-Ion Beam Parameters

Author

刘雨昭 Yuzhao Liu, 刘卫国 Weiguo Liu, 惠迎雪 Yingxue Xi, 陈智利 Zhili Chen, and 费芒芒 Mangmang Fei

Subjects
Materials science, Ion beam, business.industry, Sapphire, Optoelectronics, Irradiation, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics
Published
2019

22. Influence of Polarization State on InterferenceFringe Contrast

Author

刘卫国 Liu Weiguo, 田爱玲 Tian Ailing, 勾鑫聪 Gou Xincong, 朱学亮 Zhu Xueliang, and 王大森 Wang Da-sen

Subjects
Physics, Condensed matter physics, Electrical and Electronic Engineering, Polarization (waves), Atomic and Molecular Physics, and Optics
Published
2019

26. Influence of the Clamping and Gravity Deformation on Absolute Test of Large Plane

Author

赵思伟 Zhao Si wei, 王大森 Wang Da sen, 刘丙才 Liu Bing cai, 朱学亮 Zhu Xue liang, 刘卫国 Liu Wei guo, and 田爱玲 Tian Ai ling

Subjects
Physics, Gravity (chemistry), Plane (geometry), Absolute test, Geometry, Deformation (meteorology), Atomic and Molecular Physics, and Optics, Clamping
Published
2018

27. Photosynthesis and physiological-biochemical characteristics ofPhragmites australisin swamp, light salt meadow and sand dune habitats

Author

丁俊祥 Ding Junxiang, 唐立松 Tang Lisong, 邹杰 Zou Jie, and 刘卫国 Liu Weiguo

Subjects
chemistry.chemical_classification, geography, geography.geographical_feature_category, Ecology, chemistry, Habitat, Salt (chemistry), Environmental science, Photosynthesis, Swamp, Ecology, Evolution, Behavior and Systematics, Sand dune stabilization
Published
2015

29. VOx films prepared by DC magnetron sputtering

Author

周顺 Shun Zhou, 刘欢 Huan Liu, 杨旭 Xu Yang, 刘卫国 Weiguo Liu, and 蔡长龙 Changlong Cai

Subjects
Optics, Materials science, business.industry, Optoelectronics, Electrical and Electronic Engineering, Sputter deposition, High-power impulse magnetron sputtering, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2010

30. Patterning of PZT thin films

Author

刘卫国 Weiguo Liu, 翟于嘉 Yujia Zhai, 黄静 Jing Huang, 蔡长龙 Changlong Cai, and 马卫红 Weihong Ma

Subjects
Optics, Materials science, business.industry, Optoelectronics, Electrical and Electronic Engineering, Thin film, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2010

31. Nano Pyramid Microstructures on Ag Film Induced by Low Energy Ion Beams

Author

刘卫国 Liu Weiguo, 张锦 Zhang Jin, 王蒙皎 Wang Meng-jiao, and 陈智利 Chen Zhi-li

Subjects
Materials science, Low energy, Ion beam mixing, Nano, Pyramid, Nanotechnology, Microstructure, Focused ion beam, Atomic and Molecular Physics, and Optics, Ion
Published
2014

32. Patterning process of SiO2 film and fabrication of Si V-groove

Author

刘卫国 Weiguo Liu, 刘君娥 Jun’e Liu, 刘欢 Huan Liu, and 郭忠达 Zhongda Guo

Subjects
Optics, Fabrication, Materials science, business.industry, Process (computing), Optoelectronics, Electrical and Electronic Engineering, business, Groove (engineering), Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2010

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