Electromagnetic pulse 14 Crystal orientation 4 Electric fields 4 Electron emission 4 Electron emission spectra 4 Emission spectroscopy 4 External fields 4 Perturbation techniques 4 Photo-electron emission 4 Ultrashort electromagnetic pulse 4 Vector potential 4 Angle-resolved 2 Angular distributions 2 Approximation theory 2 Asymptotic behaviors 2 Atomic ionization 2 Atoms 2 Central wavelength 2 Chaotic map 2 Chaotic systems 2 Charged particles 2 Condensed matter physics 2 Constant envelope 2 Crystal surfaces 2 Dispersive waves 2 Distorted wave methods 2 Distorted waves 2 Electrolytes 2 Electromagnetic compatibility 2 Electromagnetic interference reductions 2