Figure 2

Comparison of (a) THz emission profiles and (b) FFT spectra for 30-nm Co with 1-nm Pt or 1-nm Pd capping layer at a positively saturated state.
Comparison of (a) THz emission profiles and (b) FFT spectra for 30-nm Co with 1-nm Pt or 1-nm Pd capping layer at a positively saturated state.