NDLI: Perturbations of radiative lifetimes of rovibrational levels of the I$^{1}$ Π g - and J$^{1}$ Δ g

Content Provider	Springer Nature Link
Author	Astashkevich, S. A. Lavrov, B. P.
Copyright Year	2000
Abstract	Adiabatic and nonadiabatic values of radiative lifetimes of rovibrational levels of the electronic states I$^{1}$ Π g - and J$^{1}$ Δ g - of the H$_{2}$ molecule are calculated by using data of ab initio calculations of matrix elements of dipole moments of transitions on vibrational wave functions. In comparing our results to those of semiempirical determination of these quantities that we obtained earlier, the two sets on average differed by 25% for rovibronic levels of the I$^{1}$ Π g - state and by 30% for rovibronic levels of the J$^{1}$ Δ g - state. The inclusion of electronic–rotational interaction is shown to result in surprisingly small (<10%) variations of radiative lifetimes in spite of the considerable perturbations of probabilities of rovibronic transitions of the system of bands I$^{1}$ Π g - ,J$^{1}$ Δ g - → B$^{1}$Σ u + , C$^{1}$Π u ± . Thus, strong mutual perturbations of the upper levels lead only to the redistribution of flows of various channels of spontaneous decay and do not considerably vary the total decay rate of these levels.
Starting Page	13
Ending Page	22
Page Count	10
File Format	PDF
ISSN	0030400X
Journal	Optics and Spectroscopy
Volume Number	89
Issue Number	1
e-ISSN	15626911
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2016-01-30
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optics, Optoelectronics, Plasmonics and Optical Devices
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials

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