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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

Published online by Cambridge University Press:  04 August 2016

A. Curcio ,
M. Anania ,
F.G. Bisesto ,
A. Faenov ,
M. Ferrario ,
M. Galletti ,
D. Giulietti ,
R. Kodama ,
M. Petrarca  and
T. Pikuz
...Show all authors
A. Curcio*
Affiliation:
INFN National Laboratories of Frascati, Frascati, Italy Physics Department of the Roma University “La Sapienza”, Rome, Italy
M. Anania
Affiliation:
INFN National Laboratories of Frascati, Frascati, Italy
F.G. Bisesto
Affiliation:
INFN National Laboratories of Frascati, Frascati, Italy Physics Department of the Roma University “La Sapienza”, Rome, Italy
A. Faenov
Affiliation:
Institute for Academic Initiatives, Osaka University, Suita, Osaka, 565-0871, Japan Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow 125412, Russia
M. Ferrario
Affiliation:
INFN National Laboratories of Frascati, Frascati, Italy
M. Galletti
Affiliation:
INFN National Laboratories of Frascati, Frascati, Italy
D. Giulietti
Affiliation:
Physics Department of the University and INFN, Pisa, Italy
R. Kodama
Affiliation:
Institute for Academic Initiatives, Osaka University, Suita, Osaka, 565-0871, Japan PPC Osaka University and JST, CREST, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
M. Petrarca
Affiliation:
S.B.A.I. department of the Roma University “La Sapienza”, Rome, Italy INFN Roma1, Rome, Italy
T. Pikuz
Affiliation:
Institute for Academic Initiatives, Osaka University, Suita, Osaka, 565-0871, Japan Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow 125412, Russia
A. Zigler
Affiliation:
INFN National Laboratories of Frascati, Frascati, Italy Racah Institute of Physics, Hebrew University, Jerusalem 91904, Israel
*
Address correspondence and reprint requests to: A. Curcio, INFN National Laboratories of Frascati, Frascati, Italy. E-mail: [email protected]
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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 Lα 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.

Keywords

Air plasma sparksX-raysFemtosecond laser
Type
Research Article
Information
Laser and Particle Beams , Volume 34 , Issue 3 , September 2016 , pp. 533 - 538
Copyright
Copyright © Cambridge University Press 2016 

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References

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