Year: 2024
Type: article
Abstract: A comprehensive theoretical approach to describe the electron-ion radiative recombination in the presence of intense, short laser pulses, which accounts for $1/c$ corrections, is presented. Its essential step is based on expanding the relativistic Coulomb-Volkov solution describing an electron in a combined Coulomb potential and a laser field in powers of $1/c$. In this way, we can trace the origin of nondipole effects observed in the spectrum of emitted radiation. Hence, as we demonstrate for high-frequency pulses assisting the process, a significant extension of the cutoff and asymmetry in angular distributions of the emitted radiation can be attributed to the electron recoil off the laser pulse. In addition, we investigate the possibility of enhancing the efficiency of the generated high-energy radiation by chirping the pulse.
Source: Physical Review A
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4403636756