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Science 22 November 2002:
Vol. 298. no. 5598, pp. 1596 - 1600
DOI: 10.1126/science.1076782
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Research Articles
Electron Acceleration by a Wake Field Forced by an Intense Ultrashort Laser Pulse
V. Malka,1*
S. Fritzler,1
E. Lefebvre,2
M.-M. Aleonard,3
F. Burgy,1
J.-P. Chambaret,1
J.-F. Chemin,3
K. Krushelnick,4
G. Malka,3
S. P. D. Mangles,4
Z. Najmudin,4
M. Pittman,1
J.-P. Rousseau,1
J.-N. Scheurer,3
B. Walton,4
A. E. Dangor4
Plasmas are an attractive medium for the next generation
of particle accelerators because they can support electric fields greater than several hundred gigavolts per meter. These accelerating fields are generated by relativistic plasma waves--space-charge oscillations--that can be excited when a high-intensity laser
propagates through a plasma. Large currents of background electrons can
then be trapped and subsequently accelerated by these relativistic waves. In the forced laser wake field regime, where the laser pulse
length is of the order of the plasma wavelength, we show that a gain in
maximum electron energy of up to 200 megaelectronvolts can be achieved,
along with an improvement in the quality of the ultrashort electron
beam.
1 Laboratoire d'Optique Appliquée,
École Nationale Supérieure des Techniques Avancées,
École Polytechnique, CNRS, UMR 7639, 91761 Palaiseau, France.
2 Département de Physique Théorique et
Appliquée, CEA/DAM Ile-de-France, BP 12, 91680 Bruyères-le-Châtel, France.
3 Centre
d'Etudes Nucléaires Bordeaux Gradignan, IN2P3-Université
de Bordeaux I, 33175 Gradignan, France.
4 Blackett
Laboratory, Imperial College of Science, Technology, and Medicine,
London SW7 2BZ, UK.
*
To whom correspondence should be addressed. E-mail:
victor.malka{at}ensta.fr
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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
- Particle Therapy Co-operative Oncology Group (PTCOG 40) Meeting, Institute Curie 2004.
- B Jones and I Rosenberg (2005)
Br. J. Radiol.
78, 99-102
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- Applications for Nuclear Phenomena Generated by Ultra-Intense Lasers.
- K. W. D. Ledingham, P. McKenna, and R. P. Singhal (2003)
Science
300, 1107-1111
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