Published: Ultrafast dynamics in (TaSe4)2I triggered by valence and core-level excitation

We make use of both optical laser and free-electron laser (FEL) based time-resolved spectroscopies in order to study the effect of a selective excitation on the normal-state and on the CDW phases by probing the near-infrared/visible optical properties both along and perpendicularly to the direction of the CDW, where the system is metallic and insulating, respectively.
 

W. Bronsch et al., Faraday Discussions 237, 40-57 (2022).