研究领域

飞秒激光诱导表面形性调控及其功能性应用研究；超构表面精密加工技术及其应用；飞秒激光诱导相变材料物相调控及机理研究"代表性研究项目
1. 教育部，装备预研教育部联合基金青年人才项目，2019.01-2020.12，80万，在研，主持
2. 北京市自然科学基金委员会，青年基金项目，2019.01-2020.12，10万，在研，主持
3. 北京市博士后科学基金委员会，博士后基金项目A类，2018.06-2019.05，结题，主持
4. 中国博士后科学基金委员会，博士后基金项目(一等)，2018.05-2019.05，结题，主持
5. 北京市优秀人才培养骨干项目，2018.01-2019.12，6万，主持"

近期论文

代表性论文
[1] W.N. Han, Kang Zhao, Changji Pan, Yanping Yuan, Yan, Zhao, Zhaochen, Cheng, Fabrication of Ge₂Sb₂Te₅ crystal micro/nanostructures through single-shot Gaussian-shape femtosecond laser pulse based on the confined-localized threshold effect. (2020, Under Review)
[2] Z.H. Han, W.N. Han*, F.R. Liu, Z. Han, Y.P. Yuan, and Z.C. Cheng, Ultrafast temporal-spatial dynamics of amorphous-to-crystalline phase transition in Ge2Sb2Te5 thin film triggered by multiple femtosecond laser pulses irradiation. Nanotechnology 31(11), 115706 (2019).
[3] W.N. Han, F.R. Liu, Y.P. Yuan, X.W. Li, Y.H. Wang, and L. Jiang, Continuous control of microlens morphology on silicon based on the femtosecond laser induced morphologies modulation, Optics & Laser Technology, 119, 105629 (2019).
[4] W.N. Han, D.F. Li, F.R. Liu, Y.P. Yuan, and X.W. Li, Controllable Si nanostructures formation based on quasi-plasmonic surface structures formed by annular-shaped femtosecond laser pulse, IEEE Photonics Journal, 11(4), 1-8 (2019).
[5] W.N. Han, F.R. Liu, Y.P. Yuan, X.W. Li, Q.S. Wang, S.J. Wang, and L. Jiang, Femtosecond laser induced concentric semi-circular periodic surface structures on Silicon based on the quasi-plasmonic annular nanostructure, Nanotechnology, 29(30), 305301 (2018).
[6] W.N. Han, L. Jiang, et al., Controllable plasmonic nanostructures induced by dual-color femtosecond laser irradiation, Scientific reports, 7(1), 17333 (2017).
[7] W.N. Han, L. Jiang et al., Femtosecond laser induced tunable surface transformations on (111) Si aided by square grids diffraction, Applied Physics Letters, 107, 251601 (2015).
[8] W.N. Han, L. Jiang, et al., Anisotropy modulations of femtosecond laser pulse induced periodic surface structures on silicon by adjusting double pulse delay, Optics Express, 22(13), 15820-15828 (2014).
[9] L. Jiang, W.N. Han, et al., Crystal orientation dependence of femtosecond laser induced periodic surface structure on (100) silicon, Optics Letters, 39(11), 3114-3117 (2014).
[10] W.N. Han, L. Jiang, X.W. Li, et al., Continuous modulations of femtosecond laser-induced periodic surface structures and scanned line-widths on silicon by polarization changes, Optics Express, 21(13), 15505-15513 (2013).
Applied Physics Letters, Optics and Laser Technology, Physica Status Solidi B等期刊审稿人