Fig. 2: Calculated HHG spectrum, emission times and VUV attosecond pulses. | Nature Communications

Fig. 2: Calculated HHG spectrum, emission times and VUV attosecond pulses.

From: Attosecond metrology of vacuum-ultraviolet high-order harmonics generated in semiconductors via laser-dressed photoionization of alkali metals

Fig. 2

a Calculated HHG spectrum (black line) and the corresponding emission times \({t}_{e}^{(q)}\) (red yellow-filled circles) in the Cs interaction region. In the plot we have set \({t}_{e}^{(q=13)}=0\). The spectrum is shown in the spectral region used in the pump-probe experiment. b Calculated temporal structures of the harmonic superposition with 13 ≤ q ≤ 23, resulting in the formation of attosecond pulse trains with the duration of the main pulse in the train to be  ≈ 950 asec.

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