Laser beams Atomic physics 8 Laser pulses 8 Pulsed laser applications 8 Angular momentum 6 Interfaces (materials) 6 Ionization 6 Lasers 6 Angular distribution 4 Approximation theory 4 Atomic ionizations 4 Atoms 4 Crystals 4 Diffraction 4 Diffraction gratings 4 Lenses 4 Light propagation 4 Light refraction 4 Mathematical models 4 Momentum distributions 4 Optical data processing 4 Photodetectors 4 Photolithography 4 Polycrystalline materials 4 Ab-initio 2 Above-threshold ionizations 2 Absorbed photons 2 Absorption 2 Algorithms 2 All optical 2