“…It can provide a deeper insight into interactions of different vibrational and electronic states by resonant excitation of multiple states. [
150–152 ] A time‐resolved extension of TSF spectroscopy with
(i.e., pump–THG‐probe) was recently exploited by Morrow et al., to measure multidimensional transient spectra on polycrystalline thin films and spiral nanostructures of MoS 2 and WS 2 . [
153 ] Besides the possibility to isolate transitions with large dipole moments ( Figure a) due to the
scaling of the TSF signal with transition dipole
, TSF probe provided high contrast signal for the investigated nanostructure morphologies (Figure 6b).…”