ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The metastable O(1D) atom produced in the photodissociation of O2 in the wavelength region 113–130 nm was detected by measuring the 762 nm fluorescence of the transition O2(b 1Σg+→X 3Σg−). The excited states of O2 were classified as either the 3Σu− state that produces O(1D)+O(3P), or the 3Πu state that produces O(3P)+O(3P). Our quantum yield measurements of O(1D) found bands of both pure and overlapped 3Σu− and 3Πu states. Five bands were found to produce O(1D), including the longest, second, and third bands and two additional bands near 115.3 and 113.8 nm that were assigned as the E 3Σu−(v′=3–4) states. Three bands were assigned to the F 3Πu(v′=0–2) state. We also found a state at 116.2 nm, which did not produce O(1D), but produced weak visible fluorescence. The possibility of attributing the fluorescence to a transition D 3Σu+–C 3Πg was discussed. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.480739
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