Fig. 2. (IMAGE)

Forschungsverbund Berlin

Fig. 2.

Caption

THz emission of the TO phonons with (red) and without (black) excitation by a second pulse. The electric field is plotted as a function of time. The second optical pulse leads to a shortening of the oscillation period, corresponding to an increase of the frequency from 8 to 8.1 THz.

Credit

MBI

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