Molecular rotovibrational dynamics excited in optical filamentation.
The rotovibrational dynamics excited by optical filamentation in molecular gases is studied in the temporal domain. Two time-delayed replicas of the same laser pulse have been used to generate a first filament, for the rotovibrational excitation of the sample, and a second collinear filament probing the Raman dynamics. The Fermi doublet structure in CO(2) as well as the very fast stretching mode of H(2) were clearly resolved.
Calegari
F
F
National Laboratory for Ultrafast and Ultraintense Optical Science-CNR-INFM, Dipartimento di Fisica, Politecnico di Milano, Milano, Italy. francesca.calegari@polimi.it
Vozzi
C
C
De Silvestri
S
S
Stagira
S
S