Two-stage laser cooling and optical trapping of thulium atoms

We propose to use the magnetic-dipole transition at coupling two ground state fine-structure components of thulium (Tm), as a 'clock transition' in optical clocks. We have demonstrated first stage laser cooling of Tm atoms down to a temperature of 25 K using a strong transition at and we h...

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Bibliographic Details
Published in:Laser physics 2014-07, Vol.24 (7), p.74018
Main Authors: Vishnyakova, G A, Kalganova, E S, Sukachev, D D, Fedorov, S A, Sokolov, A V, Akimov, A V, Kolachevsky, N N, Sorokin, V N
Format: Article
Language:English
Subjects:
cold atoms
laser cooling
magneto-optical trap
optical clock
optical lattice
optical trapping
thulium atoms
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Summary:We propose to use the magnetic-dipole transition at coupling two ground state fine-structure components of thulium (Tm), as a 'clock transition' in optical clocks. We have demonstrated first stage laser cooling of Tm atoms down to a temperature of 25 K using a strong transition at and we have also shown preliminary results for second stage cooling using a weaker transition at (natural linewidth γG = 350 kHz). Laser cooled atoms have been trapped in an optical dipole trap and in a 1D optical lattice operating near 532 nm.
ISSN:1054-660X
1555-6611
DOI:10.1088/1054-660X/24/7/074018