Abstract
Non-linear Raman spectroscopies, including CARS, are valuable on-line techniques in the study of laser induced processes. This paper reports on the application of the CARS technique in studies of two gas phase systems, C/sub 6/H/sub 6/-N/sub 2/ and C/sub 6/H/sub 6/-O/sub 2/, during UV laser irradiation. Particular care was taken to measure the parent dissociation and identify the primary and secondary fragments. Under collisional conditions in the C/sub 6/H/sub 6/-N/sub 2/ mixture, it was found that C/sub 2/ in different electronically excited states is produced by two photon laser photolysis at 266 nm in direct parent fragmentation. Together with a scarcely attenuated CARS peak of C/sub 6/H/sub 6/ (v1), resonantly enhanced CARS bands of C/sub 2/ were observed. In the case of UV dissociation of the C/sub 6/H/sub 6/-O/sub 2/ mixture, nearly all the C/sub 6/H/sub 6/ was decomposed in a single shot and narrow features located on the slope of the broad 470 nm band, assigned to transitions in the Swan`s band of C/sub 2/ photofragments, were detected.
Citation Formats
Fantoni, R, Giorgi, M, Lipinska-Kalita, K E, and Moliterni, A G.
Coherent anti-stokes raman studies of UV laser induced gas phase dissociation of benzene.
Italy: N. p.,
1992.
Web.
Fantoni, R, Giorgi, M, Lipinska-Kalita, K E, & Moliterni, A G.
Coherent anti-stokes raman studies of UV laser induced gas phase dissociation of benzene.
Italy.
Fantoni, R, Giorgi, M, Lipinska-Kalita, K E, and Moliterni, A G.
1992.
"Coherent anti-stokes raman studies of UV laser induced gas phase dissociation of benzene."
Italy.
@misc{etde_10141895,
title = {Coherent anti-stokes raman studies of UV laser induced gas phase dissociation of benzene}
author = {Fantoni, R, Giorgi, M, Lipinska-Kalita, K E, and Moliterni, A G}
abstractNote = {Non-linear Raman spectroscopies, including CARS, are valuable on-line techniques in the study of laser induced processes. This paper reports on the application of the CARS technique in studies of two gas phase systems, C/sub 6/H/sub 6/-N/sub 2/ and C/sub 6/H/sub 6/-O/sub 2/, during UV laser irradiation. Particular care was taken to measure the parent dissociation and identify the primary and secondary fragments. Under collisional conditions in the C/sub 6/H/sub 6/-N/sub 2/ mixture, it was found that C/sub 2/ in different electronically excited states is produced by two photon laser photolysis at 266 nm in direct parent fragmentation. Together with a scarcely attenuated CARS peak of C/sub 6/H/sub 6/ (v1), resonantly enhanced CARS bands of C/sub 2/ were observed. In the case of UV dissociation of the C/sub 6/H/sub 6/-O/sub 2/ mixture, nearly all the C/sub 6/H/sub 6/ was decomposed in a single shot and narrow features located on the slope of the broad 470 nm band, assigned to transitions in the Swan`s band of C/sub 2/ photofragments, were detected.}
place = {Italy}
year = {1992}
month = {May}
}
title = {Coherent anti-stokes raman studies of UV laser induced gas phase dissociation of benzene}
author = {Fantoni, R, Giorgi, M, Lipinska-Kalita, K E, and Moliterni, A G}
abstractNote = {Non-linear Raman spectroscopies, including CARS, are valuable on-line techniques in the study of laser induced processes. This paper reports on the application of the CARS technique in studies of two gas phase systems, C/sub 6/H/sub 6/-N/sub 2/ and C/sub 6/H/sub 6/-O/sub 2/, during UV laser irradiation. Particular care was taken to measure the parent dissociation and identify the primary and secondary fragments. Under collisional conditions in the C/sub 6/H/sub 6/-N/sub 2/ mixture, it was found that C/sub 2/ in different electronically excited states is produced by two photon laser photolysis at 266 nm in direct parent fragmentation. Together with a scarcely attenuated CARS peak of C/sub 6/H/sub 6/ (v1), resonantly enhanced CARS bands of C/sub 2/ were observed. In the case of UV dissociation of the C/sub 6/H/sub 6/-O/sub 2/ mixture, nearly all the C/sub 6/H/sub 6/ was decomposed in a single shot and narrow features located on the slope of the broad 470 nm band, assigned to transitions in the Swan`s band of C/sub 2/ photofragments, were detected.}
place = {Italy}
year = {1992}
month = {May}
}