High-harmonic generation from plasma mirrors at kilohertz repetition rate

Antonin Borot 1 Arnaud Malvache 1 Xiaowei Chen 1 Denis Douillet 1 Grégory Iaquianiello 1 Thierry Lefrou 1 Patrick Audebert 2 Jean-Paul Geindre 2 Gérard Mourou 3 Fabien Quéré 4 Rodrigo B. Lopez-Martens 1
1 LOA - Laboratoire d'optique appliquée
2 LULI - Laboratoire pour l'utilisation des lasers intenses
3 ILE - Institut de la Lumiére Extrême
4 SPAM - Service des Photons, Atomes et Molécules
Abstract : We report the first demonstration of high-harmonic generation from plasma mirrors at a 1 kHz repetition rate. Harmonics up to nineteenth order are generated at peak intensities close to 1018 W=cm2 by focusing 1 mJ, 25 fs laser pulses down to 1:7?m FWHM spot size without any prior wavefront correction onto a moving target. We minimize target surface motion with respect to the laser focus using online interferometry to ensure reproducible interaction conditions for every shot and record data at 1 kHz with unprecedented statistics. This allows us to unambiguously identify coherent wake emission as the main generation mechanism. © 2011 Optical Society of America.
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Antonin Borot, Arnaud Malvache, Xiaowei Chen, Denis Douillet, Grégory Iaquianiello, et al.. High-harmonic generation from plasma mirrors at kilohertz repetition rate. Optics Letters, Optical Society of America, 2011, 36 (8), pp.1461-1463. ⟨10.1364/ol.36.001461⟩. ⟨hal-00838479⟩

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