Open AccessBlackbody-radiation shift in a 199Hg+ ion optical frequency standard
Author(s) -
Lihui Liu,
Zou Hong-Xin,
Lijun Qu,
Xi Li
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.103101
Subject(s) - black body radiation , hyperfine structure , physics , radiation , ion , atomic physics , electromagnetic radiation , optics , quantum mechanics
The background blackbody radiation causes the shift of the hyperfine energy level and affects the accuracy of the optical frequency standard. The polarizabilities of the hyperfine energy levels 5d106s2S1/2 (F=0) and 5d96s2 2D5/2 (F=2) of 199Hg+ are evaluated and the relative frequency shift at room temperature due to blackboby radiation is calculated to be -5.410-17. Finally the effect of blackbody radiation on single 199Hg+ optical frequency standard is discussed at an ultralow temperature.