Abstract
We theoretically investigate the delay-dependent transient absorption of a femtosecond vacuum ultraviolet (VUV) pulse by a π-conjugated system, trans-1,3-butadiene, exposed to a femtosecond near infrared (IR) intense laser pulse and find that the ultrafast dynamics of π-electrons in the excited states of trans-1,3‑butadiene are well reproduced by a three-level rotating-wave approximation. We identify the origin of the absorption features as the creation of a light-dressed (π,π*) state by the light-induced coupling with the near-IR laser pulse, resulting in the dynamical motion of the density of the π-electrons driven by the near-IR pulse.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
