Interferometric measurement of the atomic dipole phase for the two electronic quantum paths generating high-order harmonics |
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| Authors: | A Pirri C Corsi E Sali A Tortora M Bellini |
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| Institution: | (1) LENS, Via Nello Carrara 1, Sesto Fiorentino, Florence, 50019, Italy;(2) Physics Dept., University of Florence, Via Sansone 1, Sesto Fiorentino, Florence, 50019, Italy;(3) Istituto Nazionale di Ottica Applicata, L. go E. Fermi 6, Florence, I-50125, Italy |
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| Abstract: | The first direct measurement of the atomic dipole phase in high-order harmonic generation obtained by an interferometric technique in the extreme ultraviolet (XUV) is reported. The effects associated with both the main quantum paths involved in the emission of a given plateau harmonic are investigated and compared with the expectations of the semi-classical model, which offers a very simple physical picture for the understanding of the involved electronic dynamics. |
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