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 CO2 as well as the very fast stretching mode of H-2 were clearly resolved. (C) 2008 Optical Society of America
Molecular rotovibrational dynamics excited in optical filamentation
F Calegari;C Vozzi;S De Silvestri;S Stagira
2008
Abstract
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 CO2 as well as the very fast stretching mode of H-2 were clearly resolved. (C) 2008 Optical Society of AmericaFile in questo prodotto:
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