Phase coherent vacuum-ultraviolet to radio frequency comparison with a mode-locked laser

被引：207

作者：

Reichert, J ^{[1
]}

Niering, M ^{[1
]}

Holzwarth, R ^{[1
]}

Weitz, M ^{[1
]}

Udem, T ^{[1
]}

Hänsch, TW ^{[1
]}

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.84.3232

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a versatile new technique that provides a phase coherent link between optical Frequencies and the radio frequency domain. The regularly spaced comb of modes of a mode-locked femtosecond laser is used as a precise ruler to measure a large frequency gap between two different multiples (harmonics or subharmonics) of a laser frequency. In this way, we have determined a new value of the hydrogen 1S-2S two-photon resonance, f(1S-2S) = 2466 061 413 187.29(37) kHz, representing now the most accurate measurement of an optical frequency.

引用

页码：3232 / 3235

页数：4

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