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Characterization of X-ray radiation from solid Sn target irradiated by femtosecond laser pulses in the presence of air plasma sparks

  • A. Curcio (a1) (a2), M. Anania (a1), F.G. Bisesto (a1) (a2), A. Faenov (a3) (a4), M. Ferrario (a1), M. Galletti (a1), D. Giulietti (a5), R. Kodama (a3) (a6), M. Petrarca (a7) (a8), T. Pikuz (a3) (a4) and A. Zigler (a1) (a9)...

Abstract

The emission of X-rays from solid tin targets irradiated by low-energy (few mJ) femtosecond laser pulses propagated through air plasma sparks is investigated. The aim is that to better understand the X-ray emission mechanism and to show the possibility to produce proper radiation for spectroscopic and imaging applications with a table-top laser system. The utilization of a controlled ultrashort prepulse is found necessary to optimize the conversion efficiency of laser energy into L α radiation. The optimum contrast between the main pulse and the controlled prepulse is found about 102. A correlation between the laser contrast value and the laser near-infrared spectra at the exit of the plasma spark is observed.

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Corresponding author

Address correspondence and reprint requests to: A. Curcio, INFN National Laboratories of Frascati, Frascati, Italy. E-mail: alessandro.curcio@lnf.infn.it

References

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Keywords

Characterization of X-ray radiation from solid Sn target irradiated by femtosecond laser pulses in the presence of air plasma sparks

  • A. Curcio (a1) (a2), M. Anania (a1), F.G. Bisesto (a1) (a2), A. Faenov (a3) (a4), M. Ferrario (a1), M. Galletti (a1), D. Giulietti (a5), R. Kodama (a3) (a6), M. Petrarca (a7) (a8), T. Pikuz (a3) (a4) and A. Zigler (a1) (a9)...

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