Reconstruction of attosecond pulse trains using an adiabatic phase expansion

Katalin Varju, Y Mairesse, P Agostini, P Breger, B Carre, LJ Frasinski, Erik Mansten, Per Johnsson, Johan Mauritsson, H Merdji, P Monchicourt, Anne L'Huillier, P Salieres

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Abstract

We propose a new method to reconstruct the electric field of attosecond pulse trains. The phase of the high-order harmonic emission electric field is Taylor expanded around the maximum of the laser pulse envelope in the time domain and around the central harmonic in the frequency domain. Experimental measurements allow us to determine the coefficients of this expansion and to characterize the radiation with attosecond accuracy over a femtosecond time scale. The method gives access to pulse-to-pulse variations along the train, including the timing, the chirp, and the attosecond carrier envelope phase.
Original languageEnglish
Article number243901
JournalPhysical Review Letters
Volume95
Issue number24
DOIs
Publication statusPublished - 2005

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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