TITLE

Two-photon spectroscopy of N2: Multiphoton ionization, laser-induced fluorescence, and direct absorption via the a‘ 1Σ+g state

AUTHOR(S)
Lykke, Keith R.; Kay, Bruce D.
PUB. DATE
August 1991
SOURCE
Journal of Chemical Physics;8/15/1991, Vol. 95 Issue 4, p2252
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A new (2+1) resonantly enhanced multiphoton ionization (REMPI) process via the a‘ 1Σ+g state of N2 with a quantum specific detection sensitivity of ∼105 molecule cm-3 is reported. The resulting spectra are easily analyzed and yield directly the relative rotational and vibrational populations in the ground electronic state of N2. Additionally, both two-photon direct absorption (TPDA) to, and laser-induced fluorescence (LIF) from two-photon excitation of, the a‘ state of N2 are observed. These spectroscopies are compared with (2+1) REMPI and TPDA via the E,F state of H2.
ACCESSION #
7627468

 

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