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Extended fourier-transform spectroscopy studies and deperturbation analysis of the spin-orbit coupled A1Sigma+ and b3Pi states in RbCsстатья
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: 17 декабря 2014 г.
- Авторы: Artis Kruzins, Kalvis Alps, Olga Docenko, Ilze Klincare, Maris Tamanis, Ruvin Ferber, Elena Pazyuk, Andrey Stolyarov
- Журнал: Journal of Chemical Physics
- Том: 141
- Номер: 18
- Год издания: 2014
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 184309-13
- DOI: 10.1063/1.4901327
- Аннотация: The article presents a study of the strongly spin-orbit coupled singlet A1Σ+ and triplet b3Π states of the RbCs molecule, which provide an efficient optical path to transfer ultracold molecules to their rovibrational ground state. Fourier-transform A1Σ+-b3Π→ X1Σ+ and (4)1Σ+→A1Σ+-b3Π laser-induced fluorescence (LIF) spectra were recorded for the natural mixture of the 85Rb133Cs and 87Rb133Cs isotopologues produced in a heat pipe oven. Overall 8730 rovibronic term values of A1Σ+ and b3Π states were determined with an uncertainty of 0.01 cm-1 in the energy range [9012,14 087] cm-1, covering rotational quantum numbers J within [6,324]. An energy-based deperturbation analysis performed in the framework of the four A1Σ+-b3ΠΩ=0,1,2 coupled-channels approach reproduces 97% of the experimental term values of both isotopologues with a standard deviation of 0.0036 cm-1. The reliability of the deperturbed mass-invariant potentials and spin-orbit coupling functions of the interacting A1Σ+ and b3Π states is additionally proved by a good reproduction of the A-b→X and (4)1Σ+→A-b relative intensity distributions. The achieved accuracy of the A-b complex description allowed us to use the latter to assign the observed (5)1Σ+→A-b and (3)1Π→A-b transitions. As is demonstrated, LIF to the A-b complex becomes as informative as to the ground X1Σ+ state, which is confirmed by comparing the results of (4)1Σ+ state analysis based on (4)1Σ+→A-b LIF with the data from [V. Zuters et al., Phys. Rev. A 87, 022504(2013)] based on (4)1Σ+→X LIF.
- Добавил в систему: Столяров Андрей Владиславович
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