High-Precision Spectroscopy with Counterpropagating Femtosecond Pulses

被引：43

作者：

Barmes, Itan ^{[1
]}

Witte, Stefan ^{[1
]}

Eikema, Kjeld S. E. ^{[1
]}

机构：

[1] Vrije Univ Amsterdam, Dept Phys & Astron, LaserLaB, NL-1081 HV Amsterdam, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 02期

关键词：

FREQUENCY COMB SPECTROSCOPY; 2-PHOTON ABSORPTION; LINE-SHAPE; TRANSITIONS; METROLOGY;

D O I：

10.1103/PhysRevLett.111.023007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An experimental realization of high-precision direct frequency comb spectroscopy using counter-propagating femtosecond pulses on two-photon atomic transitions is presented. The Doppler broadened background signal, hampering precision spectroscopy with ultrashort pulses, is effectively eliminated with a simple pulse shaping method. As a result, all four 5S-7S two-photon transitions in a rubidium vapor are determined with both statistical and systematic uncertainties below 10(-11), which is an order of magnitude better than previous experiments on these transitions.

引用

页数：5

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