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Spectroscopic studies of the (4)1Σ+ state of RbCs and modeling of the optical cycle for ultracold X 1Σ+(v=0,J=0) molecule productionстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Zuters V., Docenko O., Tamanis M., Ferber R., Meshkov V.V., Pazyuk E.A., Stolyarov A.V.
- Журнал: Physical Review A - Atomic, Molecular, and Optical Physics
- Том: 87
- Номер: 2
- Год издания: 2013
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 022504
- DOI: 10.1103/PhysRevA.87.022504
- Аннотация: We performed high-resolution Fourier-transform spectroscopy measurements and direct-potential-fit of the shelflike RbCs (4) 1Σ+ state. Overall, 2317 rovibronic v′,J′ term values with v′∈[3,88], J′∈[7,276] were obtained with accuracy 0.01 cm−1 from the (4) 1Σ+→X 1Σ+,a 3Σ+ laser-induced fluorescence (LIF) spectra. The mass-invariant potential energy curve constructed by means of the Chebyshev polynomial expansion reproduced the experimental term values of both 85Rb 133Cs and 87Rb 133Cs isotopologues with a standard deviation of 0.005 cm−1. We simulated the optical cycle X 1Σ+,a 3Σ+(v′′,J′′=0)→(4) 1Σ+(v′,J′=1)→X 1Σ+(v′′=0,J′′=0) appropriate to transfer translationally ultracold RbCs molecules into their absolute ground state from the weakly bound rovibronic levels of both singlet X 1Σ+ and triplet a 3Σ+ ground states. The optimal transfer via the intermediate (4) 1Σ+ state with v′=58,60, and 61 for 85Rb 133Cs as well as v′=59 and 61 for 87Rb 133Cs was predicted. The required spin-allowed (4) 1Σ+−X 1Σ+ and spin-forbidden (4) 1Σ+−a 3Σ+ dipole transition moments were obtained within the framework of ab initio quasirelativistic calculations. The predicted (4) 1Σ+→X 1Σ+,a 3Σ+ transition probabilities were consistent with the experimental relative intensity distributions for several (4) 1Σ+(v′)→X,a(v′′) LIF progressions.
- Добавил в систему: Мешков Владимир Владимирович