Clock transition for a future optical frequency standard with trapped atoms

被引：79

作者：

Courtillot, I ^{[1
]}

Quessada, A ^{[1
]}

Kovacich, RP ^{[1
]}

Brusch, A ^{[1
]}

Kolker, D ^{[1
]}

Zondy, JJ ^{[1
]}

Rovera, GD ^{[1
]}

Lemonde, P ^{[1
]}

机构：

[1] Observ Paris, BNM SYRTE, F-75014 Paris, France

来源：

PHYSICAL REVIEW A | 2003年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.68.030501

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report direct excitation of the strongly forbidden 5s(2) S-1(0)-5s5p P-3(0) transition in Sr-87. Its frequency is 429 228 004 235(20) kHz. A resonant laser creates a small leak in a magneto-optical trap (MOT): atoms build up to the metastable P-3(0) state and escape the trapping process, leading to a detectable decrease in the MOT fluorescence. This line has a natural width of 10(-3) Hz and can be used for a new generation of optical frequency standards using atoms trapped in a light-shift-free dipole trap.

引用

页数：4

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