Pengfei Li was born in Henan Province, China, in 1991. He received his Ph.D. degree from Shenzhen University, Shenzhen, China, in 2022. He is currently a lecturer at Nanjing Xiaozhuang University. His research interests focus on optical fiber sensors, fiber Bragg gratings, colloidal crystals, and spherical cavities. He has authored or coauthored more than 20 journal and conference papers.