Title :
Precision frequency measurement of the 2S1/2 2D5/2 transition of Sr+ with a 674-nm diode laser locked to an ultrastable cavity
Author :
Marmet, Louis ; Madej, Alan A. ; Siemsen, Klaus J. ; Bernard, John E. ; Whitford, Bradley G.
Author_Institution :
Nat. Meas. Stand., Nat. Res. Council of Canada, Ottawa, Ont., Canada
fDate :
4/1/1997 12:00:00 AM
Abstract :
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
Keywords :
Fabry-Perot resonators; atomic clocks; carbon compounds; frequency measurement; gas lasers; helium; iodine; laser frequency stability; measurement by laser beam; measurement standards; neon; particle traps; radiation pressure; semiconductor lasers; strontium; 444779043963 kHz; 674 nm; CO2; CO2 laser; HeNe-I2; Paul trap; S-D transition; Sr; Sr ion; absolute frequency; clock transition; diode laser; heterodyne measurement; iodine stabilized HeNe laser; optical frequency standard; precision frequency measurement; ultrastable Fabry-Perot cavity; ultrastable cavity; Clocks; Diode lasers; Fabry-Perot; Frequency measurement; Laser stability; Laser transitions; Optical mixing; Probes; Standards development; Strontium;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
