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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2018.2828987
|2 doi
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|a eng
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| 100 |
1 |
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|a Gozzelino, Michele
|e verfasserin
|4 aut
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| 245 |
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|a Reducing Cavity-Pulling Shift in Ramsey-Operated Compact Clocks
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 20.11.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a We describe a method to stabilize the amplitude of the interrogating microwave field in compact atomic clocks working in a Ramsey approach. In this technique, we take advantage of the pulsed regime to use the atoms themselves as microwave amplitude discriminators. Specifically, in addition to the dependence on the microwave detuning, the atomic signal after the Ramsey interrogation acquires a dependence on the microwave pulse area (amplitude times duration) that can be exploited to implement an active stabilization of the microwave field amplitude, in a similar way in which the Ramsey clock signal is used to lock the local oscillator frequency to the atomic reference. The stabilization allows us to reduce the microwave field-amplitude fluctuations, which in turn impact the clock frequency through cavity pulling. The proposed technique has shown to be effective to improve our clock frequency stability on medium and long term. We demonstrate the method for a vapor-cell clock working with a hot sample of atoms, but it can be extended to cold-atom compact clocks
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|a Journal Article
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| 700 |
1 |
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|a Micalizio, Salvatore
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Levi, Filippo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Godone, Aldo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Calosso, Claudio Eligio
|e verfasserin
|4 aut
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| 773 |
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8 |
|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 65(2018), 7 vom: 11. Juli, Seite 1294-1301
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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| 773 |
1 |
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|g volume:65
|g year:2018
|g number:7
|g day:11
|g month:07
|g pages:1294-1301
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|u http://dx.doi.org/10.1109/TUFFC.2018.2828987
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