van Veen, N. ; Brewer, P. ; Das, P. ; Bersohn, R. (1982) Detection of the a 1Πg (v'=0, 1)← X1Σ+g (v"=0) transition in N2 by laser-induced fluorescence Journal of Chemical Physics, 77 (9). 4326_1-4326_4. ISSN 0021-9606
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Official URL: http://jcp.aip.org/resource/1/jcpsa6/v77/i9/p4326_...
Related URL: http://dx.doi.org/10.1063/1.444435
Abstract
The a 1Πg (v'=0, 1)←X1Σ+g (v''=0) transition in N2, part of the Lyman-Birge-Hopfield bands, have been seen by two-photon absorption detected by VUV fluorescence. Fluorescence was observed over a pressure range from 5 m Torr to 10 Torr. From the lifetime decrease with pressure at low pressure, quenching rate constants were determined, which are equivalent to cross sections in the range of 2.6×10-16 cm2. At higher pressures a slow decay was observed that is interpreted as being due to the a' state which acts as an energy reservoir with a pressure dependent decay constant. We anticipate that laser-induced fluorescence will be a useful scheme for measuring ground state rotational and vibrational populations for the nitrogen molecule.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Nitrogen; Fluorescence; Electronic Structure; Energy-level Transitions; Laser Radiation; Absorption Spectra; Far Ultraviolet Radiation |
| ID Code: | 86320 |
| Deposited On: | 09 Mar 2012 10:35 |
| Last Modified: | 09 Mar 2012 10:35 |
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