Recently, Professor Zhu Yiming's research group of Terahertz Technology Innovation Institute of Shanghai University of science and technology and director Liu Weiwei of Nankai University published the title of "clue to a rough understanding of terahertz pulse generation by femtosecond laser filtration" in the international high-level optical journal Photonics Research [photo. Res. 6 (4), 296-306 (2018)]. Zhao Jiayu, a young lecturer at the Terahertz Institute，is the first author, and Professor Liu Weiwei, Professor Peng Yan and Professor Zhu Yiming are co authors.