
Ultrafast atomic, molecular, and solid-state dynamics, attosecond physics and chemistry, soft x-ray and extreme ultraviolet sources, high harmonic generation, ultrafast lasers and optical physics, extreme ultraviolet four wave mixing and multidimensional spectroscopy, ultrafast processes in quantum matter, including electron and spin dynamics and phase transitions, semiconductor electronic and structural physics, carrier transport in junctions, coherent electronic, vibrational and phonon superpositions, nonadiabatic dynamics at curve crossings and conical intersections, charge switching and charge migration, photophysics of nanoparticles, nanostructures, and materials with energy applications.