Fig. 3: Scaling the THz bandwidth. | Light: Science & Applications

Fig. 3: Scaling the THz bandwidth.

From: Scalable high-repetition-rate sub-half-cycle terahertz pulses from spatially indirect interband transitions

Fig. 3

a THz waveforms for different pump-pulse durations and spectra. From red to blue the pump-pulse duration changes from 140 to 30 fs. b Corresponding pump spectra. c Normalised THz spectral amplitude of the respective waveforms shown in panel a. The highest measured THz frequencies (10% of the maximum spectral amplitude) are indicated by black arrows

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