Optical frequency measurement of the 1S-3S two-photon transition in hydrogen

被引：52
|
作者：
Arnoult, O. [1 ]
Nez, F. [1 ]
Julien, L. [1 ]
Biraben, F. [1 ]
机构：
[1] Univ Paris 06, CNRS, Lab Kastler Brossel, Ecole Normale Super, F-75252 Paris 05, France
来源：
EUROPEAN PHYSICAL JOURNAL D | 2010年 / 60卷 / 02期
关键词：
HIGH-RESOLUTION SPECTROSCOPY; RYDBERG CONSTANT; FINE-STRUCTURE; LAMB SHIFT; DEUTERIUM; LASER; LINE; GENERATION; TITANIUM; PHASE;
D O I：
10.1140/epjd/e2010-00249-6
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This article reports the first optical frequency measurement of the 1S-3S transition in hydrogen. The excitation of this transition occurs at a. wavelength of 205 nrn which is obtained with two frequency doubling stages of a titanium sapphire laser at 820 cm. Its frequency is measured with an optical frequency comb. The second-order Doppler effect is evaluated from the observation of the motional Stark effect clue to a transverse magnetic field perpendicular to the atomic beam. The measured value of the 1S(1/2) (F = 1)-35(1/2)(F = 1) frequency splitting is 2 922 742 936.729(13) MHz with a relative uncertainty of 4.5 x 10(-12). After the measurement of the 1S-2S frequency, this result is the most precise of the optical frequencies in hydrogen.
引用
收藏
页码：243 / 256
页数：14
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