Laser Cooling of Lithium-6 Atoms in a Bichromatic Light Field

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Abstract

The kinetics of 6Li atoms in a bichromatic laser field exciting transitions on D2 and D1 lines is investigated. The model takes into account the complex real structure of energy levels of 6Li (including the Zeeman degeneracy) as well as the nonuniform spatial polarization of the laser field. It is found that detuning and the polarization configuration of the light field component of the resonant D2 line of the 6Li atom are of fundamental importance for laser cooling. The possibility of cooling of atoms below the Doppler limit is demonstrated.

About the authors

R. Ya. Il'enkov

Institute of Laser Physics, Russian Academy of Sciences

Email: ilenkov.roman@gmail.com
Novosibirsk, 630090 Russia

O. N. Prudnikov

Novosibirsk State University;Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences

Email: viyudin@mail.ru
Novosibirsk, 630090 Russia;Novosibirsk, 630090 Russia

A. A. Kirpichnikova

Institute of Laser Physics, Russian Academy of Sciences

Email: ilenkov.roman@gmail.com
Novosibirsk, 630090 Russia

A. V. Taychenachev

Novosibirsk State University;Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences

Email: viyudin@mail.ru
Novosibirsk, 630090 Russia;Novosibirsk, 630090 Russia

V. I. Yudin

Novosibirsk State University;Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences;Novosibirsk State Technical University

Author for correspondence.
Email: viyudin@mail.ru
Novosibirsk, 630090 Russia;Novosibirsk, 630090 Russia;Novosibirsk, 630073 Russia

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