Determination of the xenon 6s[3/2](2)-6s'[1/2](0) clock frequency by interferometric wavelength measurements.
We have determined the wave number of the optical two-photon clock transition 6s[3/2](2)-6s'[1/2](0) in xenon by interferometrically comparing the wavelengths of the 6s[3/2](2)-6p'[1/2](1) (lambda = 450 nm) and 6s'[(1/2)] (0)-6p'([1/2]) (lambda = 764 nm) transitions with an iodine-stabilized 633-nm He-Ne laser. These measurements determine the frequency of the two-photon transition [4564.610902(13) cm(-1) for (132)Xe] to better than 1 MHz and provide precise values for the isotope shifts and the hyperfine structures of these transitions.
U
U
Sterr
A
A
Bard
C J
CJ
Sansonetti
S L
SL
Rolston
J D
JD
Gillaspy