Spectroscopy of intercombination transition super(1)S sub(0)- super( 3)P sub(1) for secondary cooling of strontium atoms

In the framework of the project aimed at creating an optical standard on cold Sr atoms we have realised sub-Doppler spectroscopy of the intercombination transition super(1)S sub(0)- super( 3)P sub(1) (689 nm) in a cell with Sr vapour and in a cloud of atoms loaded in a magneto-optical trap (MOT). By...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2015-01, Vol.45 (2), p.166-170
Main Authors: Khabarova, K Yu, Galyshev, A A, Strelkin, S A, Kostin, A S, Belotelov, G S, Berdasov, O I, Gribov, A Yu, Kolachevsky, N N, Slyusarev, S N
Format: Article
Language:English
Subjects:
Atomic beam spectroscopy
Cooling
Lasers
Magnetic fields
Saturation
Spectroscopy
Strontium
Vapour
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Summary:In the framework of the project aimed at creating an optical standard on cold Sr atoms we have realised sub-Doppler spectroscopy of the intercombination transition super(1)S sub(0)- super( 3)P sub(1) (689 nm) in a cell with Sr vapour and in a cloud of atoms loaded in a magneto-optical trap (MOT). By measuring Zeeman splitting of the super(3)P sub(1) level in the magnetic field of the MOT we have succeeded in fine adjustment of the MOT relative to a minimum of the magnetic field, which is necessary for successful secondary-stage cooling on the intercombination transition. In turn, absorption saturation spectroscopy in the vapour cell provides the long-term frequency stability of the second-stage cooling laser at [lambda] = 689 nm.
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2015v045n02ABEH015638