2008
DOI: 10.1103/physreva.78.033830
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Absolute frequency measurement of the magnesium intercombination transitionS01P13

Abstract: Absolute frequency measurement of the magnesium intercombination transition 1 S 0 We report on a frequency measurement of the (3s 2 ) 1 S0 → (3s3p) 3 P1 clock transition of 24 Mg on a thermal atomic beam. The intercombination transition has been referenced to a portable primary Cs frequency standard with the help of a femtosecond fiber laser frequency comb. The achieved uncertainty is 2.5 × 10 −12 which corresponds to an increase in accuracy of six orders of magnitude compared to previous results. The measured… Show more

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Cited by 37 publications
(28 citation statements)
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“…The wavemeter was calibrated by measuring a laser stabilized to the Mg intercombination line [34] or to the iodine stabilized HeNe laser used earlier for L 3 . The frequencies, uncertainties and quantum numbers of all transitions pumped by L 2 are given in Tab.…”
Section: A Data Recordingmentioning
confidence: 99%
“…The wavemeter was calibrated by measuring a laser stabilized to the Mg intercombination line [34] or to the iodine stabilized HeNe laser used earlier for L 3 . The frequencies, uncertainties and quantum numbers of all transitions pumped by L 2 are given in Tab.…”
Section: A Data Recordingmentioning
confidence: 99%
“…4) [16]. The short-term stability of the measurement could be improved using a transportable passive maser (H7).…”
Section: Stability Of the 24 Mg Frequency Standardmentioning
confidence: 98%
“…The EnBs-network (6 km) allows us to directly connect to the computing center at lUH using the wide-area network of GaslInE company. a 400-m long inhouse fiber pair then permits access to the Mg frequency standard [22] at Iq.…”
Section: A 900-km Long Optical Telecommunicationmentioning
confidence: 99%