FIRST PURE FREQUENCY-MEASUREMENT OF AN OPTICAL-TRANSITION IN ATOMIC-HYDROGEN - BETTER DETERMINATION OF THE RYDBERG CONSTANT

被引：46

作者：

NEZ, F

PLIMMER, MD

BOURZEIX, S

JULIEN, L

BIRABEN, F

FELDER, R

MILLERIOUX, Y

DENATALE, P

机构：

[1] BUR INT POIDS & MESURES,F-92312 SEVRES,FRANCE

[2] BNM,INST NATL METROL,F-75141 PARIS 03,FRANCE

[3] LAB EUROPEO SPETTROSCOPIE NONLINEARI,I-50125 FLORENCE,ITALY

来源：

EUROPHYSICS LETTERS | 1993年 / 24卷 / 08期

关键词：

D O I：

10.1209/0295-5075/24/8/003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have performed a pure frequency measurement of the 2S-8S/D two-photon transition in atomic hydrogen. The hydrogen frequencies are compared with the difference of two optical standards, the methane-stabilized He-Ne laser and the iodine-stabilized He-Ne laser. In this way, an optical frequency of atomic hydrogen is directly linked for the first time to the caesium clock without any interferometry. We deduce a new value for the Rydberg constant, R(infinity) = 109 737.315 683 4(24) cm(-1) with an uncertainty of 2.2 parts in 10(11). This value is currently the most precise available.

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页码：635 / 640

页数：6

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