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REMPI studies in the Lewis-Rayleigh afterglow of nitrogen

โœ Scribed by G. Black; T. Nishiya; H. Shinohara; N. Nishi; I. Hanazaki

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
289 KB
Volume
142
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The resonance-enhanced multiphoton ionization (REMPI) technique has been used to detect the presence of highly vibrationally excited nitrogen (to at least u" = 26) in the Lewis-Rayleigh afterglow of nitrogen using photoionization via the intennediate a 'l-I, state (Lyman-Birge-Hopfield bands). For the v" ~23, 24 and 25 levels in their Au--11 sequence, the REMPI process involves one photon to excite and one to ionize in contrast to the 2+ 2 process required to detect the v" =O level. The power dependences of the various processes have been measured and provide further confirmation of the assignments.

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