Fig. 4: Reconstructed sideband oscillations using the attosecond timing tool for the dataset 1.

Reconstructed experimental oscillations of photoelectrons emitted into the upper half space with respect to the light polarization direction (square black points and error bars) of the sideband \({S}_{6,7}^{(-)}\) (a), \({S}_{6,7}^{(+)}\) (b), \({S}_{9,10}^{(-)}\) (c), \({S}_{9,10}^{(+)}\) (d), \({S}_{7,9}^{(--)}\) (e), \({S}_{7,9}^{(-)}\) (f), \({S}_{7,9}^{(0)}\) (g), \({S}_{7,9}^{(+)}\) (h), and \({S}_{7,9}^{(++)}\) (i) as a function of the phase Φ (see Eq. (7)) for the dataset 1. The red curves are the double cosine fit of the experimental oscillations (see Eq. (12)). The error bars in the plots are calculated as the standard deviation of the sideband amplitudes.