Power broadening and Doppler effects of coherent dark resonances in Rb

被引：24

作者：

Erhard, M ^{[1
]}

Nussmann, S ^{[1
]}

Helm, H ^{[1
]}

机构：

[1] Univ Freiburg, Dept Mol & Opt Phys, D-79104 Freiburg, Germany

来源：

PHYSICAL REVIEW A | 2000年 / 62卷 / 06期

关键词：

Doppler effect - Fluorescence - Lasers - Molecular dynamics - Neon - Rubidium;

D O I：

10.1103/PhysRevA.62.061802

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using a phase-looked laser pair we have observed dark resonances with linewidths below 30 Hz in a rubidium cell filled with neon as buffer gas. A model allowing for pressure broadening correctly reproduces the dependence of the width on the laser intensity. Consideration of velocity changing collisions reveals the absence of Doppler effeets in the position and width of the dark resonance at high buffer-gas pressure.

引用

页码：061802 / 061801

页数：4

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