2016/11/23 by F. Cajiao Vélez, Vélez, F. Cajiao, J. Z. Kamiński +3
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics
paper · pdf · doi:10.48550/arxiv.1612.09293
openalex publication_date 2016/11/23 · openalex created_date 2017/01/06 · openalex updated_date 2026/07/28
Ionization of hydrogen-like ions by intense, circularly polarized laser pulses is analyzed under the scope of the relativistic strong-field approximation. We show that, for specific parameters of the laser field, the energy spectra of photoelectrons present a broad region without interference (supercontinuum) which can be controlled by modifying the laser field intensity. The physical interpretation of the process is developed according to the Keldysh theory, emphasizing the importance of the complex-time saddle point contributions to the total probability of photoionization. The corresponding polar-angle distributions present an asymmetry attributed to radiation pressure effects.