It can be thus concluded that the ratio between the computed intensities of the two peaks is between 1:10 and 1:100. This still seems to be somewhat in disagreement with the experimental spectrum (Figure ) for which the ratio 1:3 can be inferred from the visual inspection of the figure. However, the band intensities in the visPD spectra depend on the laser power that varies with the wavelength (Figure ). In addition, the spectra were measured with large attenuations (close to the saturation regime) with the aim to detect also less intense bands. In a linear regime, the ratio between the bands would be larger, making the agreement between experimental and theoretical results qualitatively correct.