Tiancheng Lei is a visiting Ph.D. student at Sun Yat-sen University. In 2020, he joined the research group as an intern and completed his graduation thesis. He graduated from Nanjing University of Aeronautics and Astronautics in 2021 with a Bachelor's degree in Biomedical Engineering. In June 2021, he was admitted to the Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, where he primarily focuses on photoacoustic microscopy imaging technology. He has published one journal paper and holds two invention patents. In June 2024, he graduated from the University of Chinese Academy of Sciences with a M.S. degree in Biomedical Engineering. Currently, he is engaged in research on photoacoustic microscopy imaging technology and brain function.