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Interaction of ultra-intense laser pulses with relativistic ions

Published online by Cambridge University Press:  01 July 2004

C.C. CHIRILĂ ,
C.J. JOACHAIN ,
N.J. KYLSTRA  and
R.M. POTVLIEGE
C.C. CHIRILĂ
Affiliation:
Department of Physics, University of Durham, Durham, UK
C.J. JOACHAIN
Affiliation:
Physique Théorique, Université Libre de Bruxelles, Belgium
N.J. KYLSTRA
Affiliation:
Department of Physics, University of Durham, Durham, UK Physique Théorique, Université Libre de Bruxelles, Belgium
R.M. POTVLIEGE
Affiliation:
Department of Physics, University of Durham, Durham, UK
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Abstract

At high laser intensities, three step recollision processes such as high order harmonic generation and high-order ATI, are normally severely suppressed due to the magnetic field component of the laser pulse. However, if the laser pulse and relativistic ion beam are directed against each other, a significant increase in the frequency and the intensity of the pulse in the rest frame of the ions can occur. By performing calculations based on a Coulomb-corrected nondipole strong field approximation, we have shown that there is a range of intensities, Lorentz factors, and ion charges for which the suppression of the three step recollision processes is not severe, even for ponderomotive energies exceeding 10 keV. As an example, we consider parameters relevant to the accelerator that will be built at GSI-Darmstadt, capable of accelerating multicharged ions to Lorentz factors reaching 30.

Keywords

ATIHigh order harmonic generationRelativistic ionsUltra-intense laser pulse
Type
Research Article
Information
Laser and Particle Beams , Volume 22 , Issue 3 , July 2004 , pp. 203 - 206
Copyright
© 2004 Cambridge University Press

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References

REFERENCES

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