Elliptic Dichroism in Angular Distributions in Free-Free Transitions in Hydrogen

TL;DR

This paper investigates how photon helicity influences angular distributions in high-energy electron-hydrogen scattering, highlighting the importance of atomic dressing by laser fields at higher frequencies and moderate intensities.

Contribution

It introduces the concept of elliptic dichroism in angular distributions for high-energy scattering, emphasizing the role of atomic dressing effects in laser-induced processes.

Findings

EDAD is observable at high scattering energies with atomic dressing.

Higher laser frequencies enhance the elliptic dichroism effect.

Moderate laser intensities are sufficient to observe the phenomenon.

Abstract

We discuss here the effect of the photon helicity in laser induced and inverse bremstrahlung for {\it high energy scattering} of electrons by hydrogen atoms. We demonstrate that it is possible to find EDAD for high scattering energies of the electrons if the{\it \ dressing of the atomic target} by the laser field is taken into account. We consider higher optical frequencies of the laser field and we restrict ourselves to the use of moderate field intensities.