The branching ratio of intercombination A1Σ+∼b3Π→a3Σ+/X1Σ+ transitions in the RbCs molecule: measurements and calculations

Krumins, V.; Kruzins, A.; Tamanis, M.; Ferber, R.; Pashov, A.; Oleynichenko, A.V.; Zaitsevskii, A.; Pazyuk, E.A.; Stolyarov, A.V.

Авторы: Krumins V., Kruzins A., Tamanis M., Ferber R., Pashov A., Oleynichenko A.V., Zaitsevskii A., Pazyuk E.A., Stolyarov A.V.
Журнал: Journal of Quantitative Spectroscopy and Radiative Transfer
Том: 256
Номер: November
Год издания: 2020
Издательство: Pergamon Press Ltd.
Местоположение издательства: United Kingdom
Первая страница: 1
Последняя страница: 12
Номер статьи: 107291
DOI: 10.1016/j.jqsrt.2020.107291
Аннотация: We observed the laser-induced fluorescence (LIF) of the RbCs molecule excited from the ground state by the Ti:Sapphire laser. The LIF spectra from the common perturbed levels of the singlet-triplet A ∼ b complex was recorded by the Fourier-transform (FT) spectrometer with the instrumental resolution of 0.03 cm. The relative intensity distribution in the rotationally resolved progressions was measured, and their branching ratio was found to be about of 1 in the bound region of the and states. The experiment was complemented with the scalar- and full-relativistic calculations of the transition dipole moments (TDMs) as functions of internuclear distance. The relative systematic error in the resulting ab initio TDM functions evaluated for the strong transition was estimated as few percent in the energy region, where the experimental LIF intensities are relevant. The relative spectral sensitivity of the FT registration system, operated with the InGaAs diode detector and CaF beam-splitter, was calibrated in the range [6 500, 12 000] cm by a comparison of experimental intensities in the long A ∼ b → X(vX) LIF progressions of the K2 and KCs molecules with their theoretical counterparts evaluated using the ab initio TDMs. Both experimental and theoretical transition probabilities can be employed to improve the stimulated Raman adiabatic passage process, a → A ∼ b → X, which is exploited for a laser assembling of ultracold RbCs molecules.
Добавил в систему: Столяров Андрей Владиславович

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

The branching ratio of intercombination A1Σ+∼b3Π→a3Σ+/X1Σ+ transitions in the RbCs molecule: measurements and calculationsстатья Исследовательская статья

Прикрепленные файлы