Strong-field coherent control of isolated attosecond pulse generation

Yudong Yang, Roland E. Mainz, Giulio Maria Rossi, Fabian Scheiba, Miguel A. Silva-Toledo, Phillip D. Keathley, Giovanni Cirmi and Franz X. Kärtner ()
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Yudong Yang: Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY
Roland E. Mainz: Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY
Giulio Maria Rossi: Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY
Fabian Scheiba: Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY
Miguel A. Silva-Toledo: Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY
Phillip D. Keathley: Massachusetts Institute of Technology
Giovanni Cirmi: Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY
Franz X. Kärtner: Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract Attosecond science promises to reveal the most fundamental electronic dynamics occurring in matter and it can develop further by meeting two linked technological goals related to high-order harmonic sources: improved spectral tunability (allowing selectivity in addressing electronic transitions) and higher photon flux (permitting to measure low cross-section processes). New developments come through parametric waveform synthesis, which provides control over the shape of field transients, enabling the creation of highly-tunable isolated attosecond pulses via high-harmonic generation. Here we demonstrate that the first goal is fulfilled since central energy, spectral bandwidth/shape and temporal duration of isolated attosecond pulses can be controlled by shaping the laser waveform via two key parameters: the relative-phase between two halves of the multi-octave spanning spectrum, and the overall carrier-envelope phase. These results not only promise to expand the experimental possibilities in attosecond science, but also demonstrate coherent strong-field control of free-electron trajectories using tailored optical waveforms.

Date: 2021
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DOI: 10.1038/s41467-021-26772-0

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