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Two-photon cooling ...
Two-photon cooling of magnesium atoms
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Malossi, N. (author)
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Damkjaer, S. (author)
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Hansen, P. L. (author)
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Jacobsen, L. B. (author)
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Kindt, L. (author)
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- Sauge, Sebastien (author)
- KTH,Fotonik och optik
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Thomsen, J. W. (author)
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Cruz, F. C. (author)
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Allegrini, M. (author)
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Arimondo, E. (author)
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(creator_code:org_t)
- 2005
- 2005
- English.
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In: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 72:5
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- A two-photon mechanism for cooling atoms below the Doppler temperature is analyzed. We consider the magnesium ladder system (3s(2))S-1(0)->(3s3p)P-1(1) at 285.2 nm followed by the (3s3p)P-1(1)->(3s3d)D-1(2) transition at 880.7 nm. For the ladder system quantum coherence effects may become important. Combined with the basic two-level Doppler cooling process this allows for reduction of the atomic sample temperature by more than a factor of 10 over a broad frequency range. First experimental evidence for the two-photon cooling process is presented and compared to model calculations. Agreement between theory and experiment is excellent. In addition, by properly choosing the Rabi frequencies of the two optical transitions a velocity independent atomic dark state is observed.
Keyword
- magnetooptical trap
- calcium atoms
- laser
- spectroscopy
- temperature
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Malossi, N.
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Damkjaer, S.
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Hansen, P. L.
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Jacobsen, L. B.
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Kindt, L.
-
Sauge, Sebastien
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show more...
-
Thomsen, J. W.
-
Cruz, F. C.
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Allegrini, M.
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Arimondo, E.
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show less...
- Articles in the publication
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Physical Review ...
- By the university
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Royal Institute of Technology