6533b836fe1ef96bd12a0848
RESEARCH PRODUCT
High resolution spectroscopy and channel-coupling treatment of the A 1Σ+–b 3Π complex of NaRb
Andrey V. StolyarovRuvin FerberHenry WangE. A. PazyukJianbing QiAndréi ZaitsevskiiWilliam C. StwalleyM. TamanisHongmin Chensubject
ChemistryAb initio quantum chemistry methodsExcited stateAb initioGeneral Physics and AstronomyPhysical and Theoretical ChemistryAtomic physicsPerturbation theoryGround stateSpectroscopyExcitationSpectral linedescription
The paper presents the study of the fully mixed A 1Σ+–b 3Π complex of the NaRb molecule based on high-resolution sub-Doppler spectroscopy and intensity measurements, ab initio relativistic calculations of energies, transition moments and spin–orbit interactions, as well as an inverted channel-coupling approach (ICCA) deperturbation analysis. A two-laser V-type pump–probe excitation scheme was employed to obtain A←X transition frequencies to 16 A-state vibrational levels from v=6 to v=21 with J from 8 to 23. Additionally, relative intensities in laser-induced A→X fluorescence spectra have been recorded, including progressions with all observable transitions to the ground state vibronic levels, the latter yielding unambiguous v assignment of the A-state levels observed. All experimental rovibronic term values and all measured intensity distributions were embedded in a direct simultaneous weighted nonlinear fitting in the framework of an elaborated ICCA allowing us to obtain deperturbed relativistic diabatic...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-11-01 | The Journal of Chemical Physics |