Science Advances

Supplementary Materials

This PDF file includes:

  • Section S1. Experimental setup
  • Section S2. Characterization of the IR spatial chirp near focus
  • Section S3. Evolution of the HHG efficiency with the jet longitudinal position
  • Section S4. Evolution of the beam size for higher-order harmonics
  • Section S5. Impact of qeff and α on the numerical results
  • Section S6. Impact of the longitudinal evolution of α
  • Section S7. Normalized focus shift
  • Section S8. Simulations with non-Gaussian XUV beams
  • Fig. S1. Spatial profile of the fundamental beam.
  • Fig. S2. Experimental setup.
  • Fig. S3. Characterization of the spatial chirp near the focus of the IR beam.
  • Fig. S4. Integrated XUV emission.
  • Fig. S5. Diameter of the XUV beam in the far field.
  • Fig. S6. Parametric evolution of the XUV beam size.
  • Fig. S7. Influence of the α parameter.
  • Fig. S8. Beam size evolution for several peak intensities.
  • Fig. S9. Normalized focus shift.
  • Fig. S10. Non-Gaussian XUV beam size evolution.

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