Transient Optics and Plasmonics
characterized by the electron (S= +1/2, −1/2) and hole (J= +3/2, −3/2) spin projections, respectively. The selection rules for optical transitions allow the coupling of the ±1/2 and ±3/2 states, respectively [...] is presented in Figure 3.1. In case of spectrally narrow pulses with durations of τ D =1 ps a strong dependence of pulse delay on the photon energy ħ ω is observed, see Fig. 3.1(a). The delay time increases [...] resonance at 1.6638 eV (vertical line). We were able to observe a maximum delay of 350 ps at ħ ω = 1.661 eV. For short laser pulses with τ D =150 fs a strong distortion occurs, see Fig. 3.1(b). Here, the …
