Title :
Optical frequency standards based on the /sup 199/Hg/sup +/ ion
Author :
Tanaka, U. ; Bergquist, J.C. ; Drullinger, R.E. ; Itano, W.M. ; Tanner, C.E. ; Wineland, D.J.
Author_Institution :
Commun. Res. Lab., Kobe, Japan
Abstract :
The feasibility of an optical frequency standard based on a /sup 199/Hg/sup +/ ion is discussed. A fractional frequency instability of 7 /spl times/ 10/sup -15/ (at 1 s) has been realized for a laser locked to the /sup 2/S/sub 1/2/-/sup 2/D/sub 5/2/ electric-quadrupole transition at 282 nm (f/sub o/ /spl ap/ 1.06 /spl times/ 10/sup 15/ Hz). The apparatus for a full systematic evaluation using two Hg/sup +/ standards is under construction.
Keywords :
frequency standards; laser frequency stability; mercury (metal); optical variables measurement; /sup 199/Hg/sup +/; /sup 199/Hg/sup +/ ion; /sup 2/S/sub 1/2/-/sup 2/D/sub 5/2/ electric-quadrupole transition; 1 s; 282 nm; fractional frequency instability; full systematic evaluation; optical frequency standards; Atomic measurements; Clocks; Frequency measurement; Laser transitions; Mercury (metals); Nonlinear optics; Optical scattering; Particle beam optics; Probes; Ultrafast optics;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034762
