Dr. Zhang Chengjun, born in September 1992, is the co-founder of Photon Technology ITALY SRL and currently serves as the International Business Director at Photon Technology (Zhejiang) Co. Ltd. His Ph.D. research at the Shanghai Institute of Microsystem and Information Technology focused on Superconducting Nanowire Single-Photon Detector (SNSPD). He has published over 20 SCI papers, holds 5 Chinese patents, and has contributed to national and international standards for SNSPD. Dr. Zhang’s commitment to community service is evident in his involvement in science popularization activities.