Title :
Improving the Accuracy of the CA Optical Frequency Standard
Author :
Oates, C.W. ; Wilpers, G. ; Curtis, E.A. ; Hollberg, L.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO
Abstract :
We demonstrate the reduction of residual Doppler shifts for a laser-cooled neutral atom optical frequency standard to near negligible levels through use of second-stage laser cooling and atom interferometry. For the NIST Ca optical clock, this opens up the possibility for uncertainties of less than 1 part in 1016
Keywords :
Doppler shift; atomic clocks; frequency standards; laser cooling; measurement standards; measurement uncertainty; particle interferometry; Ca optical clock; atom interferometry; neutral atom optical frequency standard; residual Doppler shifts; second-stage laser cooling; uncertainties; Atom lasers; Atom optics; Atomic beams; Clocks; Cooling; Doppler shift; Frequency; NIST; Optical interferometry; Uncertainty;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305590
