CEMSE Weekly Updates - June 23, 2026 Tue, Jun 23 2026 Newsletter Upcoming Events Stay informed about the upcoming events and the latest news from CEMSE. Gray Scott School 2026 Jun 29 - Jul 2, All day B3 L2 R2202 HPC Performance optimization parallel computing Join an international training program focused on GPU computing and HPC technologies. Geometry and Thermal Engineering of VCSELs for Enhanced Performance Wenbo Yan, Ph.D. Candidate, Electrical and Computer Engineering Jul 2, 14:00 - 16:30 B2 R5209 VCSEL vertical-cavity surface emitting laser optoelectronics photonics laser This thesis presents a comprehensive approach to enhancing VCSEL performance through geometry engineering and passive thermal management to enable next-generation high-power and high-speed photonic systems, such as speckle-free imaging and ultrafast random number generation.