Ultra short x-ray source from laser-clusters interaction

F. Dorchies; C. Bonté; F. Blasco; T. Caillaud; C. Fourment; M. Harmand; O. Peyrusse; J. J. Santos; J. Stevefelt

doi:10.1117/12.675469

3 February 2006 Ultra short x-ray source from laser-clusters interaction

F. Dorchies, C. Bonté, F. Blasco, T. Caillaud, C. Fourment, M. Harmand, O. Peyrusse, J. J. Santos, J. Stevefelt

Proceedings Volume 5975, Topical Problems of Nonlinear Wave Physics; 597501 (2006) https://doi.org/10.1117/12.675469
Event: Topical Problems of Nonlinear Wave Physics, 2005, St. Petersburg, Russian Federation

Abstract

Interaction of femtosecond (30 fs-5 ps) and intense (up to 10¹⁷ W/cm²) laser pulses with Ar clusters (180 to 350 Å radius) has been studied. The laser absorption and the cluster heating have been measured using different diagnostics, demonstrating the production of very hot and dense plasmas, in the keV range. A special attention has been devoted to the K-shell x-ray emission spectra (2.9-3.3 keV). X-ray emission has been observed from ions in very high charge states (Ar¹⁶⁺). Time-resolved measurements have been performed, giving evidence, for the first time, of extremely short x-ray pulses down to the sub-picosecond. Simulations based on both an hydrodynamic model and collisional-radiative atomic physics reveal an extremely brief x-ray emission burst consistent with measurements.

Citation Download Citation

F. Dorchies, C. Bonté, F. Blasco, T. Caillaud, C. Fourment, M. Harmand, O. Peyrusse, J. J. Santos, and J. Stevefelt "Ultra short x-ray source from laser-clusters interaction", Proc. SPIE 5975, Topical Problems of Nonlinear Wave Physics, 597501 (3 February 2006); https://doi.org/10.1117/12.675469

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