Generation of 10μW relativistic surface high-harmonic radiation at a repetition rate of 10 Hz

J. Bierbach, C. Rödel, M. Yeung, B. Dromey, T. Hahn, A. Galestian Pour, S. Fuchs, A. E. Paz, S. Herzer, S. Kuschel, O. Jäckel, M. C. Kaluza, G. Pretzler, M. Zepf, G. G. Paulus*

*Corresponding author for this work

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15 Citations (Scopus)

Abstract

Experimental results on relativistic surface HHG at a repetition rate of 10 Hz are presented. Average powers in the 10?W range are generated in the spectral range of 51 to 26 nm (24-48 eV). The surface harmonic radiation is produced by focusing the second-harmonic of a high-power laser onto a rotating glass surface to moderately relativistic intensities of 3×10 19Wcm ?2. The harmonic emission exhibits a divergence of 26 mrad. Together with absolute photon numbers recorded by a calibrated spectrometer, this allows for the determination of the extreme ultraviolet (XUV) yield. The pulse energies of individual harmonics are reaching up to the μJ level, equivalent to an efficiency of 10 ?5. The capability of producing stable and intense high-harmonic radiation from relativistic surface plasmas may facilitate experiments on nonlinear ionization or the seeding of free-electron lasers. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

Original languageEnglish
Article number065005
Number of pages9
JournalNew Journal of Physics
Volume14
DOIs
Publication statusPublished - 07 Jun 2012

Keywords

  • PLASMA MIRRORS
  • SPECTROSCOPY
  • INTENSITY
  • PULSES
  • LIGHT

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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