Applied Physics B

, Volume 78, Issue 7–8, pp 845–849

Experimental observation of anomalous high harmonics at low intensities

  • C. Valentin
  • S. Kazamias
  • D. Douillet
  • G. Grillon
  • T. Lefrou
  • F. Augé
  • S. Sebban
  • P. Balcou
Article

Abstract

A variety of complex phenomena occurs when an ultra-short laser pulse interacts with atoms in the 1013 W/cm2 range: non-sequential ionisation, electron recollision, and Freeman resonances. We show that high-harmonic spectra obtained experimentally in this parameter range also display anomalous features, which are difficult to understand in the framework of the three-step, semiclassical model. The results of a systematic study of these high harmonics generated in argon, xenon, and krypton are presented. From the experimental curves, complex high-order harmonic generation phenomena are discussed.

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References

  1. 1.
    L.F. DiMauro, P. Agostini: ‘Ionization Dynamics in Strong Laser Field’, In: Advances in Atomic, Molecular and Optical Physics, Vol. 35, ed. by B. Bederson, Walther (Academic, London 1995) p. 79 Google Scholar
  2. 2.
    K.C. Kulander, K.J. Shafer, J.L. Krause: ‘Dynamics of short-pulse excitation, ionization and harmonic conversion’, In: Super-Intense Laser–Atom Physics (NATO ASI B316), ed. by P. Piraux, A. L’Huillier, K. Rzażewski (Plenum, New York 1993) p. 95 Google Scholar
  3. 3.
    P.B. Corkum: Phys. Rev. Lett. 71, 1994 (1993) CrossRefGoogle Scholar
  4. 4.
    M. Lewenstein, P. Balcou, M.Yu. Ivanov, A. L’Huillier, P.B. Corkum: Phys. Rev. A 49, 2117 (1994) CrossRefGoogle Scholar
  5. 5.
    A. L’Huillier, M. Lewenstein, P. Salières, P. Balcou, M. Ivanov, J. Larsson, C.-G. Wahlström: Phys. Rev. A 48, R3433 (1993) Google Scholar
  6. 6.
    C.-G. Wahlström, J. Larsson, A. Persson, T. Starczewski, S. Svanberg, P. Salières, P. Balcou, A. L’Huillier: Phys. Rev. A 48, 4709 (1993) Google Scholar
  7. 7.
    I.P. Christov, J. Zhou, J. Peatross, A. Rundquist, M.M. Murnane, H.C. Kapteyn: Phys. Rev. Lett. 77, 1743 (1996) CrossRefGoogle Scholar
  8. 8.
    N.A. Papadogiannis, C. Kalpouzos, E. Gouliemakis, G. Nersysian, D. Charalambidis, F. Augé, F. Weihe, P. Balcou: Appl. Phys. B 73, 687 (2001) CrossRefGoogle Scholar
  9. 9.
    S. Kazamias, F. Weihe, D. Douillet, C. Valentin, T. Planchon, S. Sebban, G. Grillon, F. Augé, D. Hulin, Ph. Balcou: Eur. Phys. J. D 21, 353 (2002) CrossRefGoogle Scholar
  10. 10.
    S. Kazamias, D. Douillet, C. Valentin, Th. Lefrou, G. Grillon, G. Mullot, F. Augé, P. Mercère, Ph. Zeitoun, Ph. Balcou: Eur. Phys. J. D 26, 47 (2003) CrossRefGoogle Scholar
  11. 11.
    http://www-cxro.lbl.gov Google Scholar
  12. 12.
    C. Lyngå, A. L’Huillier, C.-G. Wahlström: J. Phys. B 29, 3293 (1996) CrossRefGoogle Scholar
  13. 13.
    T.D. Donnelly, T. Ditmire, K. Neuman, M.D. Perry, R.W. Falcone: Phys. Rev. Lett. 76, 2472 (1996) and references therein CrossRefGoogle Scholar
  14. 14.
    E.A. Gibson, A. Paul, N. Wagner, R. Tobey, S. Backus, I. Christov, M.M. Murnane, H.C. Kapteyn: Phys. Rev. Lett 92, 033001 (2004) CrossRefGoogle Scholar
  15. 15.
    L.V. Keldysh: Sov. Phys. JETP Lett. 1, 66 (1965) Google Scholar
  16. 16.
    R. Kopold, W. Becker, H. Rottke, W. Sandner: Phys. Rev. Lett. 85, 3781 (2000) CrossRefGoogle Scholar
  17. 17.
    S. Larochelle, A. Talebpour, S.L. Chin: J. Phys. B 31, 1201 (1998) CrossRefGoogle Scholar
  18. 18.
    D.N. Fittinghoff, P.R. Bolton, B. Chang, K.C. Kulander: Phys. Rev. Lett. 69, 2642 (1992) CrossRefGoogle Scholar
  19. 19.
    R.D. Cowan: ‘Experimental background and basic concepts’, In: The Theory of Atomic Structure and Spectra, ed. by D.H. Sharp, L.M. Simmons Jr. (University of California Press, Berkeley 1981) p. 12 Google Scholar
  20. 20.
    M. Drescher, M. Hentschel, R. Kienberger, M. Uiberacker, V. Yakovlev, A. Scrinzi, Th. Westerwalbesloh, U. Kleineberg, U. Heinzmann, F. Krausz: Nature 419, 803 (2002)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • C. Valentin
    • 1
  • S. Kazamias
    • 1
  • D. Douillet
    • 1
  • G. Grillon
    • 1
  • T. Lefrou
    • 1
  • F. Augé
    • 1
  • S. Sebban
    • 1
  • P. Balcou
    • 1
  1. 1.Laboratoire d’Optique AppliquéeENSTA – Ecole PolytechniquePalaiseauFrance

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