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    Article

    Table-top femtosecond soft X-ray laser by collisional ionization gating

    An improved table-top femtosecond soft X-ray laser with a gain duration of 450 fs is reported.

    A. Depresseux, E. Oliva, J. Gautier, F. Tissandier, J. Nejdl… in Nature Photonics (2015)

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    Article

    Experimental observation of anomalous high harmonics at low intensities

    A variety of complex phenomena occurs when an ultra-short laser pulse interacts with atoms in the 1013 W/cm2 range: non-sequential ionisation, electron recollision, and Freeman resonances. We show that high-harmo...

    C. Valentin, S. Kazamias, D. Douillet, G. Grillon, T. Lefrou, F. Augé… in Applied Physics B (2004)