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Rotational and vibrational effects in the E 1Sigma(+)g-X 1Sigma(+)g two-photon transitions of H2, HD, and D2
- Source :
- Journal of Chemical Physics. 95
- Publication Year :
- 1991
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1991.
-
Abstract
- This paper reports a theoretical study of the dependence of the E 1Sigma(+)g v(E) = 0, J-X 1Sigma(+)g, v(X),J transitions in H2, HD, and D2 on the initial vibrational and rotational quantum numbers v(X) and J. The results demonstrate the concerted nature of two-photon transitions. The magnitude of the two-photon transition moment increases with v(X) between 0 and 2, then decreases rapidly at higher v(X). The J dependence of the two-photon transition moment is most strongly affected by the changes in vibrational wave functions caused by centrifugal distortion of the vibrational potential. It is shown that the J variation can be used as a probe of resonant tunneling in the double-well potential of the E,F state.
- Subjects :
- Atomic And Molecular Physics
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 95
- Database :
- NASA Technical Reports
- Journal :
- Journal of Chemical Physics
- Notes :
- NSF CHE-90-07939
- Publication Type :
- Report
- Accession number :
- edsnas.19910057996
- Document Type :
- Report
- Full Text :
- https://doi.org/10.1063/1.461477