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Attosecond control of collective electron motion in plasmas

Abstract : Today, light fields of controlled and measured waveform can be used to guide electron motion in atoms and molecules with attosecond precision. Here, we demonstrate attosecond control of collective electron motion in plasmas driven by extreme intensity ($\approx$10$^{18}$ W cm$^{−2}$) light fields. Controlled few-cycle near-infrared waves are tightly focused at the interface between vacuum and a solid-density plasma, where they launch and guide subcycle motion of electrons from the plasma with characteristic energies in the multi-kiloelectronvolt range--two orders of magnitude more than has been achieved so far in atoms and molecules. The basic spectroscopy of the coherent extreme ultraviolet radiation emerging from the light-plasma interaction allows us to probe this collective motion of charge with sub-200 as resolution. This is an important step towards attosecond control of charge dynamics in laser-driven plasma experiments.
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Antonin Borot, Arnaud Malvache, Xiaowei Chen, Aurélie Jullien, Jean-Paul Geindre, et al.. Attosecond control of collective electron motion in plasmas. Nature Physics, Nature Publishing Group, 2012, 8, pp.416 - 421. ⟨10.1038/nphys2269⟩. ⟨cea-00853633⟩



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