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Precision frequency measurement of the 2S1/2 2D5/2 transition of Sr+ with a 674-nm diode laser locked to an ultrastable cavity

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5 Author(s)
Marmet, L. ; Nat. Meas. Stand., Nat. Res. Council of Canada, Ottawa, Ont., Canada ; Madej, A.A. ; Siemsen, Klaus J. ; Bernard, J.E.
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We have measured the frequency of the 5s 2S1/2 -4d 2D5/2 clock transition of a single Sr ion confined in a Paul trap. A diode laser locked to an ultrastable Fabry-Perot (F-P) cavity was used to probe the transition with a resolution of 3.5 kHz. The absolute frequency was determined from heterodyne measurements referenced to an iodine stabilized HeNe laser and a CO2 laser yielding a value for the S-D transition of (444 779 043 963±30) kHz. This work could lead to the development of a new optical frequency standard at 674 nm

Published in:
Instrumentation and Measurement, IEEE Transactions on  (Volume:46 ,  Issue: 2 )

Date of Publication: Apr 1997

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