Laser cooling of atoms at narrow optical transitions in fields with a polarisation gradient

Autor:	V. I. Yudin, R. Ya. Il’enkov, A. V. Taichenachev, Oleg Prudnikov
Rok vydání:	2020
Předmět:	Physics Recoil effect law Laser cooling Statistical and Nonlinear Physics Electrical and Electronic Engineering Atomic physics Radiation Atomic and Molecular Physics and Optics Bose–Einstein condensate Electronic Optical and Magnetic Materials law.invention
Zdroj:	Quantum Electronics. 50:551-555
ISSN:	1468-4799 1063-7818
DOI:	10.1070/qel17337
Popis:	The efficiency of the polarisation mechanisms of laser cooling of atoms is analysed using narrow optical transitions for which the recoil energy is greater than or comparable to the natural line width. By the example of atoms with the J g = 1 → J e = 2 optical transition (J g and J e are the total angular momenta of the ground and excited states) in the resonant light fields of σ + – σ – and lin⊥lin configurations, the analysis of the minimum achievable energies of laser-cooled atoms is performed. It is shown that the polarisation mechanisms of laser cooling under conditions of a significant influence of recoil effects become less efficient and do not lead to average kinetic energies of an ensemble of atoms below the Doppler limit.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::55d6eecf60078736629202b221ee1707 https://doi.org/10.1070/qel17337 Zobrazit plný text záznamu