个人简介

刘鑫怡，上海理工大学基础学部物理学院预聘研究员，主要从事表界面的非线性光学研究。她重点利用二阶非线性光谱技术，对光催化表面、复杂埋藏界面、二维异质界面等体系进行原位探测，分析其中的微观结构演化、分子振动耦合及超快动力学过程。

研究方向

表界面非线性光学；二阶非线性光谱；光催化表面、复杂埋藏界面与二维异质界面原位探测；微观结构演化、分子振动耦合及超快动力学。

教育背景与工作经历

• 2011.09-2015.06 大连理工大学，物理与光电工程学院，学士
• 2015.09-2021.06 复旦大学，物理学系，博士
• 2021.06-2026.01 复旦大学，物理学系，博士后
• 2026.02-至今 上海理工大学，理学院，预聘研究员

科（教）研项目及成果

• 主要从事表界面的非线性光学研究，重点利用二阶非线性光谱技术对光催化表面、复杂埋藏界面、二维异质界面等体系进行原位探测。
• 代表性成果见“代表性论著”栏目。

代表性论著

• 1. X. Liu#, T. Zhou#, Z. Qin, C. Ma, F. Lu, T. Liu, J. Li, S. Wei, G. Cheng, and W.-T. Liu, Nonlinear optical phonon spectroscopy revealing polaronic signatures of the LaAlO3/SrTiO3 interface, Sci. Adv. 9, eadg7037 (2023).
• 2. X. Li#, F. S. Brigiano#, S. Pezzotti#, X. Liu#, W. Chen#, H. Chen, Y. Li, H. Li, X. Lin, W. Zheng, Y. Wang, Y. R. Shen, M.-P. Gaigeot, and W.-T. Liu, Unconventional structural evolution of an oxide surface in water unveiled by in situ sum-frequency spectroscopy, Nat. Chem. 17, 198-203 (2025).
• 3. X. Liu and W.-T. Liu, In situ nonlinear optical spectroscopy for probing buried oxide-water interfaces, Nat. Chem. 17, 167-168 (2025).
• 4. X. Liu#, T. Zhou#, X. Sheng, H. Li, and W.-T. Liu, Specific and high-affinity adsorption of volatile organic compounds on titanium dioxide surface, J. Chem. Phys. 161, 194704 (2024).
• 5. M. Qu, G. Huang, X. Liu#, X. Nie, C. Qi, H. Wang, J. Hu, H. Fang, Y. Gao, W.-T. Liu, J. S. Francisco, and C. Wang, Room temperature bilayer water structures on a rutile TiO2(110) surface: hydrophobic or hydrophilic?, Chem. Sci. 13, 10546-10554 (2022).
• 6. X. Liu, T. Zhou, and W.-T. Liu, Structural variation of anatase (101) under near infrared irradiations monitored by sum-frequency surface phonon spectroscopy, J. Chem. Phys. 150, 084701 (2019).
• 7. X. Liu, D. Yang, Y. Li, Y. Gao, and W.-T. Liu, Anisotropic adsorption of 2-phenylethyl alcohol on rutile (110) surface, J. Phys. Chem. C 123, 29759-29764 (2019).
• 8. 刘鑫怡, 刘韡韬, 界面与低维体系的非线性光学研究, 物理 48, 417-425 (2019).

Profile

Liu Xinyi is a tenure-track researcher in the School of Physics, Faculty of Basic Sciences, University of Shanghai for Science and Technology. Her research focuses on nonlinear optics at surfaces and interfaces, using second-order nonlinear spectroscopy to probe photocatalytic surfaces, complex buried interfaces, and two-dimensional heterointerfaces in situ, with attention to microscopic structural evolution, vibrational coupling, and ultrafast dynamics.

Research

surface and interface nonlinear optics; second-order nonlinear spectroscopy; in situ probing of photocatalytic surfaces, complex buried interfaces, and two-dimensional heterointerfaces; microscopic structural evolution, vibrational coupling, and ultrafast dynamics.

Education & Work Experience

• 2011.09-2015.06 B.S., School of Physics and Optoelectronic Engineering, Dalian University of Technology
• 2015.09-2021.06 Ph.D., Department of Physics, Fudan University
• 2021.06-2026.01 Postdoctoral Fellow, Department of Physics, Fudan University
• 2026.02-present Tenure-track Researcher, School of Science, University of Shanghai for Science and Technology

Research Output

• Research focuses on nonlinear optics at surfaces and interfaces, using second-order nonlinear spectroscopy to probe photocatalytic surfaces, complex buried interfaces, and two-dimensional heterointerfaces in situ.
• Representative outputs are listed under Selected Publications.

Selected Publications

• 1. X. Liu#, T. Zhou#, Z. Qin, C. Ma, F. Lu, T. Liu, J. Li, S. Wei, G. Cheng, and W.-T. Liu, Nonlinear optical phonon spectroscopy revealing polaronic signatures of the LaAlO3/SrTiO3 interface, Sci. Adv. 9, eadg7037 (2023).
• 2. X. Li#, F. S. Brigiano#, S. Pezzotti#, X. Liu#, W. Chen#, H. Chen, Y. Li, H. Li, X. Lin, W. Zheng, Y. Wang, Y. R. Shen, M.-P. Gaigeot, and W.-T. Liu, Unconventional structural evolution of an oxide surface in water unveiled by in situ sum-frequency spectroscopy, Nat. Chem. 17, 198-203 (2025).
• 3. X. Liu and W.-T. Liu, In situ nonlinear optical spectroscopy for probing buried oxide-water interfaces, Nat. Chem. 17, 167-168 (2025).
• 4. X. Liu#, T. Zhou#, X. Sheng, H. Li, and W.-T. Liu, Specific and high-affinity adsorption of volatile organic compounds on titanium dioxide surface, J. Chem. Phys. 161, 194704 (2024).
• 5. M. Qu, G. Huang, X. Liu#, X. Nie, C. Qi, H. Wang, J. Hu, H. Fang, Y. Gao, W.-T. Liu, J. S. Francisco, and C. Wang, Room temperature bilayer water structures on a rutile TiO2(110) surface: hydrophobic or hydrophilic?, Chem. Sci. 13, 10546-10554 (2022).
• 6. X. Liu, T. Zhou, and W.-T. Liu, Structural variation of anatase (101) under near infrared irradiations monitored by sum-frequency surface phonon spectroscopy, J. Chem. Phys. 150, 084701 (2019).
• 7. X. Liu, D. Yang, Y. Li, Y. Gao, and W.-T. Liu, Anisotropic adsorption of 2-phenylethyl alcohol on rutile (110) surface, J. Phys. Chem. C 123, 29759-29764 (2019).
• 8. Liu Xinyi and Liu Weitao, Nonlinear optical studies of interfaces and low-dimensional systems, Physics 48, 417-425 (2019).