Zhao, X.X.ZhaoNolte, S.S.NolteAckermann, R.R.Ackermann2022-03-062022-03-062020https://publica.fraunhofer.de/handle/publica/26456910.1364/OL.391989We investigated ultrashort pulse filamentation and lasing action of N+2 for pump-probe experiments in gases. Using femtosecond coherent anti-Stokes Raman scattering, the white-light supercontinuum generated in the filament was used to excite ro-vibrational Raman transitions in air, CO2 and CH4. We show that the lasing pulse acts as a probe for the excited levels by detecting the corresponding anti-Stokes Raman spectroscopy signals. This feature may be applied to remote sensing applications, as the temporal and spatial alignment of the probe beam and the filament is intrinsically provided.enoptical pumpingprobesraman scatteringremote sensingsupercontinuum generation620535Lasing of N+2 induced by filamentation in air as a probe for femtosecond coherent anti-Stokes Raman scatteringjournal article