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Generation of attosecond pulses in molecular nitrogen

  • H. Wabnitz
  • Y. Mairesse
  • L. J. Frasinski
  • M. Stankiewicz
  • W. Boutu
  • P. Breger
  • P. Johnsson
  • H. Merdji
  • P. Monchicourt
  • P. Salières
  • K. Varjú
  • M. Vitteau
  • B. Carré
Ultraintense and Ultrashort Laser Fields

Abstract.

We have generated attosecond pulse trains in an ensemble of randomly aligned nitrogen molecules. Measurements of the high-order harmonic relative phases and amplitudes allow us to reconstruct the temporal profile of the attosecond pulses. We show that in the considered spectral range, the latter is very similar to the pulse train generated in argon under the same conditions. We discuss the possible influence of the molecular structure in the generation process, and how it can induce subtle differences on the relative phases.

PACS.

42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation 42.65.Re Ultrafast processes; optical pulse generation and pulse compression 33.80.Wz Other multiphoton processes 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Authors and Affiliations

  • H. Wabnitz
    • 1
  • Y. Mairesse
    • 1
  • L. J. Frasinski
    • 2
  • M. Stankiewicz
    • 2
    • 3
  • W. Boutu
    • 1
  • P. Breger
    • 1
  • P. Johnsson
    • 4
  • H. Merdji
    • 1
  • P. Monchicourt
    • 1
  • P. Salières
    • 1
  • K. Varjú
    • 4
  • M. Vitteau
    • 1
  • B. Carré
    • 1
  1. 1.CEA/DSM/DRECAM/SPAMGif-sur-YvetteFrance
  2. 2.J.J. Thomson Physical Laboratory, The University of ReadingReadingUK
  3. 3.Institute of Physics, Jagellonian UniversityKrakowPoland
  4. 4.Department of PhysicsLund UniversityLundSweden

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