MEASUREMENT OF THE FRICTION COEFFICIENT IN 1D CORKSCREW OPTICAL MOLASSES BY STIMULATED RAYLEIGH SPECTROSCOPY

被引：23

作者：

LOUNIS, B ^{[1
]}

COURTOIS, JY ^{[1
]}

VERKERK, P ^{[1
]}

SALOMON, C ^{[1
]}

GRYNBERG, G ^{[1
]}

机构：

[1] ECOLE NORM SUPER,SPECTR HERTZIENNE LAB,F-75231 PARIS 05,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.69.3029

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transmission spectrum of a probe beam interacting with one-dimensional cesium optical molasses made from two circularly cross-polarized cooling beams (corkscrew molasses) displays a narrow (almost-equal-to 30-70 kHz) Rayleigh resonance. From the width of this resonance we deduce the friction coefficient of the cooling force to be alpha = (5.8 +/- 0.4)HBAR k2 for a detuning from resonance equal to 3GAMMA. This value is in quantitative agreement with theoretical predictions. We also show that the shape of the Rayleigh resonance depends dramatically on the efficiency of the sub-Doppler cooling mechanism.

引用

页码：3029 / 3032

页数：4

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