Absolute Frequency Measurement of
Phys Rev Lett
; 124(6): 063002, 2020 Feb 14.
Article
en En
| MEDLINE
| ID: mdl-32109124
ABSTRACT
We report the precision measurement of the absolute frequencies, hyperfine splitting, and 2P fine structure splitting in cold atoms of ^{6}Li. Using the stabilized optical frequency comb and developed heterodyne detection technique, the photon shot-noise limited optical spectroscopy is achieved. The measurement of absolute frequencies of D_{1} lines is reached with an uncertainty of about 1 kHz, which is 1 order of magnitude more accurate than previous measurements. The hyperfine splitting of the D_{1} line and 2P fine structure splitting of ^{6}Li are 26.103 1 (14) and 10 052.780 4 (18) MHz, respectively, in agreement with recent theoretical calculations. Our results could provide a benchmark to test the theory at the higher precision and help to resolve large discrepancies among previous experiments.
Texto completo:
1
Banco de datos:
MEDLINE
Idioma:
En
Año:
2020
Tipo del documento:
Article