Experimental studies of attosecond pulse trains

K. Varjú, P. Johnsson, R. López-Martens, T. Remetter, E. Gustafsson, J. Mauritsson, M. B. Gaarde, K. J. Schafer, Ch Erny, I. Sola, A. Zaïr, E. Constant, E. Cormier, E. Mével, A. L'Huillier

Research output: Contribution to journalArticle

20 Citations (Scopus)


We present experimental measurements of attosecond pulse trains. The characterization of the pulses uses a spectral interferometry technique that is implemented with a Mach-Zehnder interferometer. This allows us to manipulate independently the pump and probe pulses for a wide range of applications. By letting the attosecond pulses pass through metallic films, we can in particular compensate for the intrinsic chirp of the attosecond pulses corresponding to the plateau spectral region, thus getting pulses as short as 170 attoseconds - only 1.2 optical cycles at the central frequency. The measurement technique is also applicable for determination of the group delay of thin XUV-transparent films and relative delay in the photoionization process. Our experimental method is applied to attosecond pulse trains created by 35- and 9-fs laser pulses, and the shortest train observed consists of three or four pulses.

Original languageEnglish
Pages (from-to)888-898
Number of pages11
JournalLaser Physics
Issue number6
Publication statusPublished - Jun 1 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Experimental studies of attosecond pulse trains'. Together they form a unique fingerprint.

  • Cite this

    Varjú, K., Johnsson, P., López-Martens, R., Remetter, T., Gustafsson, E., Mauritsson, J., Gaarde, M. B., Schafer, K. J., Erny, C., Sola, I., Zaïr, A., Constant, E., Cormier, E., Mével, E., & L'Huillier, A. (2005). Experimental studies of attosecond pulse trains. Laser Physics, 15(6), 888-898.