Schedule 3 5:30 PM - 5:45 PM [XOPT-2-02] Diffractive Optics for Experiments at X-ray Free-Electron Lasers *Christian David1, Benedikt Rösner1, Florian Döring1, Gediminas Seniutinas1, Vitaliy A. Guzenko1 (1. Paul Scherrer Institut)