This article is cited in 1 paper

Physics of ultra cold atoms and their applications

Loss of atoms from a near-resonance hollow dipole trap

V. A. Vinogradov^ab, K. A. Karpov^abc, A. V. Turlapov<sup>ab

a</sup> International Center for Quantum Optics and Quantum Technologies (the Russian Quantum Center), Moscow, Skolkovo
^b Federal Research Center The Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod
^c Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region

Abstract: The lifetime of a gas of ⁶Li atoms in a large hollow optical dipole trap formed by radiation with a frequency detuned by 4 or 2 GHz upward from resonance is measured. The trap has the shape of a thin-walled cylinder with flat bases and a volume of ~1 mm³. The main mechanism responsible for the loss of atoms is heating due to Rayleigh scattering. The influence of collisions of atoms with the background gas and with each other on the measured lifetime is negligible.

Keywords: laser trapping and cooling, dipole force, lifetime of atoms in dipole traps.

Received: 04.03.2021
Revised: 26.04.2021

 English version: Quantum Electronics, 2021, 51:6, 490–494

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