课题组近年来主要围绕铁电薄膜光子学前沿交叉方向，开展新型铁电薄膜的外延生长、非线性光学与超快动力学表征、以及太赫兹与集成光子学器件研究。迄今以第一、通讯作者身份在Nature、Nature Physics、Nat. Commun.、Light Sci. Appl.、Adv. Mater.等国际高水平期刊上发表论文40余篇，在Science、Nature Materials等期刊上合作发表论文90余篇，申请发明专利5项（已授权2项）。课题组承担教育部稳定支持计划项目、国家自然科学基金区域联合重点项目、原创探索计划项目、面上项目（两项）、北京市基金委杰青等重要科研项目，以及中核集团等企业横向研发项目。课题组现拥有混合分子束外延、脉冲激光沉积、射频磁控溅射、钛宝石飞秒放大激光器、强场太赫兹超快光谱、微波光子测试平台等多套自主设计搭建的先进光电测试装置，并与国内外X射线自由电子激光、同步辐射、超快电子衍射大科学装置建立了稳定的合作联系。课题组多人次博士生入选国自然优秀博士生基金项目、中国科协青托博士生专项，以及获得国家奖学金等荣誉奖励。每年可招收1-2名博士生，长期欢迎科研助理、博士后加入本组。
近期代表性论文如下，完整列表详见ResearchGate (https://www.researchgate.net/profile/Qian-Li-176)：
(1) Q. Li, H. Wen* et al; Subterahertz collective dynamics of polar vortices, Nature, (2021) 592, 376
(2) W. Li, S. Wang, P. Peng, H. Han, X. Wang*, J. Ma, J. Luo, J.-M. Liu, J.-F. Li, C.-W. Nan, Q. Li*; Terahertz excitation of collective dynamics of polar skyrmions over a broad temperature range; Nature Physics (2025) 21, 1965
(3) S. Wang; W. Li; C. Deng; Z. Hong*; H. Gao; X. Li; Y. Gu; Q. Zheng*; Y. Wu; P.G. Evans; J.-F. Li; C.-W. Nan; Q. Li*; Giant electric field induced second harmonic generation in polar skyrmions, Nature Communications(2024) 15, 1374
(4) S. Wang; J. Yang; H. Gao; K. Okamoto; R. Liu; Y. Ma; T. Zhou; M. Holt; Q. Zheng; H. Funakubo; S. Liu*; J.-F. Li; Q. Li*; Millimeter-wave dielectric tunability driven by topological polar structure switching in PbTiO3/SrTiO3 superlattices,Nature Communications, 2026, doi: 10.1038/s41467-026-69440-x
(5) C. Deng, Y. He, W. Yang, H. Yu, Z. Hong, H. Liu, H. Han, W. Li, Y. Ma, Z. Zhang, Y. Wu, J. Ma, B. Xiong, C. Sun*, R. Yu, J.-F. Li, J. Zhou, Y. Luo, Q. Li*; Self-buffered epitaxy of barium titanate on oxide insulators enables high-performance electro-optic modulators; Light: Science & Applications(2025) 15, 21
(6) Z. Du, Y. Lai, R. Bai, B. Wang, Q. Zheng, C. Xu, T. Lu, J. Pei, W. Li, Y.-N. Wu*, K. Liu, Y. Liu, E. Fu, J.-F. Li*, Y. Yang*, Q. Li*; Robust Thermal Neutron Detection by LiInP2Se6 Bulk Single Crystals; Advanced Materials (2023) 35, 2212213
(7) H. Han, W. Li, S. Tang, Y. Wang, Z. Xu, H. Chen, J. Gu, J. Wang, D. Yi, L. Gu, H. Huang, C.-W. Nan, Q. Li*, J. Ma*; Electric field-manipulated optical chirality in ferroelectric vortex domains; Advanced Materials(2024) 36, 2408400.
(8) H. Yu, N. Guo, C. Deng*, H. Han, W. Li, C. Lebudi, S. Wang, Y. Li, Y. Chen, S. Peng, J. Zhang, J. Ma, Q. Zheng*, J.-F. Li*, Qian Li*. Tuning the electro-optic properties of BaTiO3 epitaxial thin films via buffer layer-controlled polarization rotation paths. Advanced Functional Materials (2024), 34, 2315579
(9) Q. Li*, J. Sun*; Twisted light with a designed polar topology; Nature Nanotechnology (2025) 20, 859
(10) W. Li, L. Liao, C. Deng, C. Lebudi, J. Liu, S. Wang, D. Yi, L. Wang*, J.-F. Li*, Q. Li*; Artificial domain patterning in ultrathin ferroelectric films via modifying the surface electrostatic boundary conditions; Nano Letters (2024) 24, 5010
(11) W. Zhang, X. Mou, Y. Ma, Y. Zheng, S. Wang, L. Shu, Z. Du, C. Deng, Q. Yang*, R. Yu*, J.-F. Li*, Q. Li*; Phase coexistence induced giant dielectric tunability and electromechanical response in PbZrO3 epitaxial thin films; Small (2025) 202410260
(12) H. Sha, Y. Zhang, Y. Ma, W. Li, W. Yang, J. Cui, Q. Li*, H. Huang*, R. Yu*; Polar vortex hidden in twisted bilayers of paraelectric SrTiO3; Nature Communications (2024) 15, 10915.
(13) H. Sha, Y. Ma, G. Cao, J. Cui, W. Yang, Q. Li*, R. Yu*; Subnanometer-scale mapping of crystal orientation and depth-dependent structure of dislocation cores in SrTiO3; Nature Communications (2023) 14, 162
(14) W. Li&, Y. Ma, T. Feng, Z. Du, Y. Liu, S. V. Kalinin, J.-F. Li*, Q. Li*; Delineating complex ferroelectric domain structures via second harmonic generation spectral imaging; Journal of Materiomics (2023), 9, 395
(15) Q. Li*, B. Wang, Q. He, P. Yu, L.-Q. Chen, S.V. Kalinin*, J.-F. Li*; Ferroelastic Nanodomain-Mediated Mechanical Switching of Ferroelectricity in Thick Epitaxial Films; Nano Letters (2021) 21, 445