Alexandre Trisorio

Alexandre Trisorio is the head of the Swiss Free Electron Laser (SwissFEL) gun laser group at the Paul Scherrer Institut (PSI) since July 2019. He holds an MSc in Optics and Photonics from University Paris Sud (2005) and a PhD in Physics (2008), both under Prof. Gérard Mourou (Nobel Prize laureate). His research focuses on advanced laser technologies and electron beam manipulation for FEL applications. He co-leads the SwissFEL seeding project to generate attosecond coherent X-ray pulses and manages the Gun Laser Group, comprising 3 engineers and a technician.

Key research areas include novel laser source development using diode-pumped Ytterbium systems and improving FEL performance through laser-based techniques. His work addresses challenges like microbunching instability and dual-photocathode laser schemes for exotic FEL modes. Certified as a Project Manager Professional (PMP) in 2021, he bridges R&D innovation with operational excellence in high-intensity laser systems.

Scientific achievements include pioneering spatial/temporal laser pulse shaping and contributions to two-color X-ray FEL generation. His lab, part of PSI’s Laboratory for Non-linear Optics, advances both academic and industrial laser applications.