CEA integrates three teams. LIDYL has a strong and internationally recognized expertise in strong field physics, ultrafast laser-matter interactions and shaping and control of ultrashort pulses in the extreme UV domain. It will bring its expertise in strong field laser interactions in condensed matter and contribute to WP3, Optical and Electrical Interconversion of angular momentum. SPEC is internationally recognized for its seminal contributions to spin-orbitronics and antiferromagnetic spintronics. It brings its expertise in time-resolved optical magnetic imaging. The combination of LYDIL and SPEC’s skills will be acrucial asset to the optical probe and excitation of non equilibrium OAM. SPEC will lead WP3. Finally, GMT will bring its long experience in the realistic modeling of electronic, magnetic and transport properties of surfaces interfaces using tools ranging from DFT to tight-binding codes. GMT will be involved in WP2 to quantify orbital transport parameters theoretically.