Abstract
Coherent anti-Stokes Raman spectroscopy (CARS) was used to measure the vibrational temperature of microwave-excited nitrogen in a N2−CO−He mixture. CARS spectra, originating from the N2-vibrational levelsv=0 up tov=3, have been recorded by both narrowband scanning of the resonance region as well as by broadband OSA detection. For the microwave-excited N2 molecules a vibrational temperatureT v (N 2 = (2130±110K) and a lower limit of detection forN 2(v = 3) = 1.2 x 1015 cm−3 was established. The CARS results were independently confirmed by simultaneously recorded and spectrally resolved CO infrared fluorescence studies.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J.W.Nibler, J.R.McDonald, A.B.Harvey: Opt. Commun.18, 371 (1976)
M.D.Duncan, P.Oesterlin, F.König, R.Byer: Chem. Phys. Lett.80, 253 (1981)
P.Huber-Wälchli, D.M.Guthals, J.W.Nibler: Chem. Phys. Lett.67, 233 (1979)
J.J.Valentini, D.S.Moore, D.S.Bomse: Chem. Phys. Lett.83, 217 (1981)
A.C.Eckbreth: Combust. Flame39, 133 (1980)
K.Müller-Dethlefs, M.Péalat, J.-P.E.Taran: Ber. Bunsenges. Phys. Chem.85, 803 (1981)
R.E.Teets, J.H.Bechtel: Opt. Lett.6, 458 (1981)
J.J.Song, G.L.Eesley, M.D.Levenson: Appl. Phys. Lett.29, 567 (1976)
M.Péalat, J.P.E.Taran, J.Taillet: J. Appl. Phys.52, 2687 (1981)
L.A.Rahn, L.J.Zych, P.L.Mattern: Opt. Commun.30, 249 (1979)
W.M.Tolles, J.W.Nibler, J.R.McDonald, A.B.Harvey: Appl. Spectrosc.31, 253 (1977)
S.Druet, J.-P.E.Taran: InChemical and Biochemical Applications of Lasers, Vol. IV, ed. by C.B.Moore (Academic Press, New York 1979) p. 187
G.Herzberg:Molecular Spectra and Molecular Structure, I. Spectra of Diatomic Moleculees (Van Nostrand Reinhold, New York 1950)
W.M.Shaub, J.W.Nibler, A.B.Harvey: J. Chem. Phys.67, 1883 (1977)
R.Poss: Dissertation, Georg-August-Univ. Göttingen (1971)
K.P.Horn, P.E.Oettinger: J. Chem. Phys.54, 3040 (1971)
C.E.Treanor, J.W.Rich, R.G.Rehm: J. Chem. Phys.48, 1798 (1968)
N.Legay-Sommaire, F.Legay: Can. J. Phys.48, 1966 (1970)
M.Péalat, J.-P.Taran, F.Moya: Opt. Laser Technol.12, 21 (1980)
F.Moya, S.A.J.Druet, J.-P.E.Taran: Opt. Commun.13, 169 (1975)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dreier, T., Wellhausen, U., Wolfrum, J. et al. CARS studies of vibrationally excited nitrogen at low pressures. Appl. Phys. B 29, 31–36 (1982). https://doi.org/10.1007/BF00694366
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00694366