Li Kewu
Chinese Ministry of Education
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Publication
Featured researches published by Li Kewu.
Optics Express | 2017
Li Kewu; Zhang Rui; Jing Ning; Chen Youhua; Zhang Minjuan; Wang Liming; Wang Zhibin
The fast and full range measurements of ellipsometric parameters ψ and Δ using a 45° dual-drive symmetric photoelastic modulator (PEM) are proposed. The PEM operates in a pure traveling modulation mode with a constant retardation magnitude and the modulation axis performing circular motion. A field programmable gate array is used to control the PEM and fulfill the data processing. The parameters sin 2ψ sinΔ, sin 2ψ cosΔ, and sin 2ψ can be measured simultaneously, providing accurate measurements of ψ and Δ over the full range. The experimental results show that the repeatability and sensitivity of this system are at 10-3°, and the data acquisition rate is 1 ms/point.
Archive | 2015
Li Kewu; Li Xiao; Wang Zhibin; Wang Liming; Zhang Rui; Yu Hui; Xue Rui
Chemometrics and Intelligent Laboratory Systems | 2017
Zhang Rui; Chen Yuanyuan; Wang Zhibin; Li Kewu
Archive | 2015
Li Kewu; Wang Zhibin; Li Xiao; Zhang Rui; Yang Changqing; Li Jinhua; Chen Yuanyuan; Xue Rui; Yu Hui
Archive | 2015
Zhang Rui; Wang Zhibin; Xue Peng; Li Kewu; Chen Yuanyuan; Zhang Minjuan; Li Jinhua; Wang Yaoli
Archive | 2015
Zhang Rui; Li Jinhua; Wang Zhibin; Li Kewu; Zhang Minjuan; Wang Yaoli; Chen Youhua; Chen Yuanyuan
Archive | 2015
Zhang Rui; Li Xiao; Li Jinhua; Wang Zhibin; Li Kewu; Wang Yaoli; Chen Yuanyuan; Chen Youhua; Zhang Minjuan; Li Shiwei
Archive | 2017
Wang Zhibin; Li Kewu; Zhang Rui; Chen Youhua; Chen Yuanyuan; Li Jinhua; Liu Xinglai; Yang Changqing
Archive | 2017
Zhang Minjuan; Hao Qian; Li Jinhua; Jing Ning; Wang Zhibin; Zhang Rui; Li Kewu; Su Limei
Yingyong Guangxue | 2016
Chen Youhua; Lyu Ze; Li Kewu; Wang Zhibin
