This article is cited in 1 paper

Extreme laser radiation: physics and fundamental applications

Ellipticity dependence of high harmonic yield in intense laser field: case of s-valence electron

T. S. Sarantseva^a, A. A. Silaev^a, N. V. Vvedenskii^a, M. V. Frolov^ab, N. L. Manakov<sup>b

a</sup> Institute of Applied Physics of the Russian Academy of Sciences, Nizhnii Novgorod
^b Voronezh State University

Abstract: Having solved numerically the time-dependent Schrödinger equation, we have analysed the dependence of the high harmonic generation yield on the ellipticity of an intense laser field. For the case of a zero angular momentum of an initial state, it has been shown that the ellipticity dependence of the HHG yield is affected by the harmonic number. The numerical results are interpreted in the framework of our recently developed quasi-classical analytical model for HHG. In the quasi-classical approximation, the difference in the ellipticity dependence of the HHG yield for different harmonics is shown to be caused by the interference effects of quantum orbits.

Keywords: femtosecond pulses, atoms, ionisation, high harmonic generation, attosecond pulses, numerical simulation.

Received: 08.02.2016

 English version: Quantum Electronics, 2016, 46:4, 366–370

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