Polarization and angular distribution of the radiation emitted in laser-assisted recombination

TL;DR

This paper investigates how intense external polarized radiation influences the angular distribution and polarization of photons emitted during laser-assisted recombination, revealing new polarization effects and distribution modifications.

Contribution

It introduces a theoretical and numerical analysis of polarization states and angular distributions in laser-assisted recombination, highlighting effects of external radiation fields.

Findings

Elliptically polarized photon emission occurs when electron beam momentum is misaligned with the field.

External radiation significantly alters the angular distribution of emitted photons.

Predicted effects are supported by numerical calculations of recombination rates.

Abstract

The effect of an intense external linear polarized radiation field on the angular distributions and polarization states of the photons emitted during the radiative recombination is investigated. It is predicted, on symmetry grounds, and corroborated by numerical calculations of approximate recombination rates, that emission of elliptically polarized photons occurs when the momentum of the electron beam is not aligned to the direction of the oscillating field. Moreover, strong modifications to the angular distributions of the emitted photons are induced by the external radiation field.