Dr. Yuhai Li
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Academic Career Length
9Years (2018-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications2 May 2022 in Nuclear Fusion
Journal Article
Yuhai Li
Qingshun BaiYGYuheng Guan
Yuheng Guan
PZPeng Zhang
Peng Zhang
RSRongqi Shen
Rongqi Shen
CYCaizhen Yao
Caizhen Yao
+5
The organic contamination damage of large-aperture optical components limits laser energy improvement of inertial confinement fusion (ICF). In situ cleaning of large-aperture optical components via low-pressure plasma is expected to remove organic contaminants from the optical surface. Herein, low-pressure air plasma equipment was proposed and used on surfaces of SiO2 sol–gel antireflection (AR) films in situ by conducting experiments. Its electrical discharge parameters were investigated and optimized during plasma cleaning. Plasma diffusion characteristics and homogeneity in large-aperture windows were analyzed by optical emission spectroscopy. Dramatic degradation in the optical properties of components was observed after organic contamination for 5 h. Transmittance, laser-induced damage threshold and surface morphology observation results demonstrated that low-pressure air plasma removed the organic contaminants from the surface of sol–gel AR films without causing damage and metal contamination. After plasma cleaning, the hydrophilicity of the films increased significantly due to the increase in the polar components of surface free energy. The mechanism of plasma cleaning organic contaminants was confirmed by x-ray photoelectron spectroscopy measurements. These salient results provide a new alternative method for removing organic contaminants in situ from large-aperture optical components and a foundation for improving the energy output of the ICF system.
21 April 2022 in Optics and Lasers in Engineering
Journal Article
BWBowen Wang
Bowen WangYZYan Zou
Yan Zou
LZLinfei Zhang
Linfei Zhang
Yuhai LiQCQian Chen
Qian Chen
CZChao Zuo
Chao Zuo
1 April 2022 in Applied Surface Science
Journal Article
Yuhai LiQBQingshun Bai
Qingshun Bai
CYCaizhen Yao
Caizhen Yao
PZPeng Zhang
Peng Zhang
RSRongqi Shen
Rongqi Shen
WHWei Han
Wei Han
+5
24 October 2022 in RSC Advances
Journal Article
Yuhai LiYJYilan Jiang
Yilan Jiang
XLXujie Liu
Xujie Liu
Qingshun BaiHLHao Liu
Hao Liu
XYXiaodong Yuan
Xiaodong Yuan
+3
The increased reaction species concentration and ambient temperature improved plasma cleaning ability
1 May 2020 in Journal of Orthopaedic Translation
Journal Article
SCShanshan Chen
Shanshan ChenPWPeng Wan
Peng WanBZBingchun Zhang
Bingchun Zhang
Ke YangYuhai LiBisphosphonates (BPs) are known as a group of well-established drugs which are clinically used in metabolic bone disorder-related therapies. Recently increasing interests are focused on the application of BPs in the biodegradable Mg-based implants. In this study a facile method was applied to fabricate a zoledronate loaded coating on AZ31 Mg alloy in comparison with the previous construction strategies, such as Ca-P chelation with BPs. The results showed that the fluoride pretreated coating could provide better corrosion resistance. Zoledronic acid (ZA) was successfully loaded on the surface of Mg alloy detected by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) analysis, and the release profile was quantified with Ultraviolet (UV) detection. It is considered that this construction of ZA coated Mg-based orthopedic implants could be easily and efficiently used in clinic. Different from the traditional drug release mode, this paper used the hydrogen bond between drug molecules and drug carriers to not only realise the effective drug release in the early stage of drug release, but also meet the continuous effect of drugs in the later stage, providing a new possibility for clinical application.
1 June 2022 in Plasma Science and Technology
Journal Article
Yuhai LiQingshun BaiYGYuheng Guan
Yuheng Guan
HLHao Liu
Hao Liu
PZPeng Zhang
Peng Zhang
CYCaizhen Yao
Caizhen Yao
+6
Low-pressure air plasma cleaning is an effective method for removing organic contaminants on large-aperture optical components in situ in the inertial confinement fusion facility. Chemical reactions play a significant role in plasma cleaning, which is a complex process involving abundant bond cleavage and species generation. In this work, experiments and reactive molecular dynamics simulations were carried out to unravel the reaction mechanism between the benchmark organic contaminants of dibutyl phthalate and air plasma. The optical emission spectroscopy was used to study the overall evolution behaviors of excited molecular species and radical signals from air plasma as a reference to simulations. Detailed reaction pathways were revealed and characterized, and specific intermediate radicals and products were analyzed during experiments and simulation. The reactive species in the air plasma, such as O, HO2 and O3 radicals, played a crucial role in cleaving organic molecular structures. Together, our findings provide an atomic-level understanding of complex reaction processes of low-pressure air plasma cleaning mechanisms and are essential for its application in industrial plasma cleaning.
About Me
Dr. Yuhai Li, Post-doctoral Fellow &
Principal Investigator, Laser Fusion Research Center, China Academy of
Engineering Physics. Dr. Li earned his B.Eng. (2017) from Northeast
Agricultural University, M.Eng. (2019), and Ph.D. (2023) from Harbin Institute
of Technology, all in mechanical/optical engineering. Since 2023, he has worked
at the Laser Fusion Research Center, CAEP, first as a post-doc and now as an
assistant researcher. He has published 26 first-/corresponding-author papers,
including two ESI Highly Cited Papers in Nuclear Fusion and Laser Photonics
Reviews, and serves on the editorial boards or as a reviewer for Optics
Express, ACS Appl. Mater. Interfaces and other journals. A member of SPIE,
Optica, COS, and CSOE, he delivered an invited talk at the 51st IEEE ICOPS. Dr.
Li currently leads four competitive grants that total CNY 73 million in direct
funding: National Natural Science Foundation of China—Youth Project (CNY 0.3 M,
2025-2027); National Post-doctoral Innovative Talent Support Program (CNY 0.24
M, 2023-2025); Sichuan Provincial Natural Science Foundation—Youth Project (CNY
0.10 M, 2025-2026); and CAEP Young Talent Growth Fund (CNY 0.09 M, 2024-2026). For
these contributions, he received the National First Prize in the 1st and 4th
National Plasma S&T Innovation Competitions (2021, 2024), China
Electro-technical Society “Excellent Ph.D.” Award (2024), National Scholarship
(2022), and Heilongjiang “Outstanding Graduate” (2023).
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