Open AccessObservation of transitions in strontium triplet state and its application in optical clock
Author(s) -
Feng Gao,
Yebing Wang,
Tian Xiao,
Peng Xu,
Chang Su Hong
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.173201
Subject(s) - strontium , atomic physics , singlet state , atom (system on chip) , population , triplet state , physics , absorption (acoustics) , materials science , excited state , optics , computer science , nuclear physics , demography , sociology , embedded system
In this paper we present a method of observing triplet state transitions of strontium. The intercombination transition is employed to pump the atom population from singlet-state (5s2)1S0 to triplet-state (5s5p)3P1 by a laser at 689 nm. Then 688 nm laser is also employed to divide atom population into the two other triplet-state states (5s5p)3P0 and (5s5p)3PP2. We can obtain the absorption signals of triplet-state transition (5s6s)3S1 → (5s5p)3P0 and (5s6p)3S1 → (5s5p)3P3P2. And these atomic absorption signals can be used for stabilizing the repumping light 679 nm and 707 nm directly to transition line of strontium. This method can be used in the Doppler cooling of strontium atoms.