Min Qiu's lab has developed a new technique for controllable fabrication of wafer-scale nano-gratings by femtosecond lasers. This technique takes advantage of laser direct writing to produce artificial seeds, which regulate subsequent laser-induced self-assembly via surface plasmonic interference.

Relative Paper: Jiao Geng, Xiaoguo Fang, Lei Zhang, Guangnan Yao, Liye Xu, Fengjiang Liu, Weiwei Tang, Liping Shi, Min Qiu. Controllable generation of large-scale highly regular gratings on Si films[J]. Light: Advanced Manufacturing. doi: 10.37188/lam.2021.022