Role of the Coulomb potential on the ellipticity in atomic high-order harmonics generation

Abstract

The role of the Coulomb potential on the generation of elliptically polarized high-order harmonics from atoms driven by elliptically polarized laser is investigated analytically. It is found that the Coulomb effect makes a contribution to the harmonic ellipticity for low harmonic orders and short quantum path. By using the strong-field eikonal-Volkov approximation, we analyze the influence of the Coulomb potential on the dynamics of the continuum state and find that the obtained harmonic ellipticity in our simulation originates from the break of symmetry of the continuum state.

arXiv comment4 figures, 10 pages

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Cited by in corpus (3)

• The selection rules of high harmonic generation: the symmetries of molecules and laser fields
• Molecular orbital tomography beyond the plane wave approximation
• Helicity reversion in high harmonic generation driven by bichromatic counterrotating circularly polarized laser fields