Phase control of attosecond pulses in a train

Chen Guo, Anne Harth, Stefanos Carlström, Yu Chen Cheng, Sara Mikaelsson, Erik Marsell, Christoph Heyl, Miguel Miranda, Mathieu Gisselbrecht, Mette B. Gaarde, Kenneth J. Schafer, Anders Mikkelsen, Johan Mauritsson, Cord L. Arnold, Anne L'Huillier

Research output: Contribution to journalArticlepeer-review

15 Citations (SciVal)

Abstract

Ultrafast processes in matter can be captured and even controlled by using sequences of few-cycle optical pulses, which need to be well characterized, both in amplitude and phase. The same degree of control has not yet been achieved for few-cycle extreme ultraviolet pulses generated by high-order harmonic generation (HHG) in gases, with duration in the attosecond range. Here, we show that by varying the spectral phase and carrier-envelope phase (CEP) of a high-repetition rate laser, using dispersion in glass, we achieve a high degree of control of the relative phase and CEP between consecutive attosecond pulses. The experimental results are supported by a detailed theoretical analysis based upon the semi-classical three-step model for HHG.

Original languageEnglish
Article number034006
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume51
Issue number3
DOIs
Publication statusPublished - 2018 Jan 16

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

Keywords

  • attosecond pulse
  • carrier-envelope phase
  • High-order harmonic generation

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