Stopping light via hot atoms

被引：284

作者：

Kocharovskaya, O ^{[1
]}

Rostovtsev, Y

Scully, MO

机构：

[1] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

[2] Texas A&M Univ, Inst Quantum Studies, College Stn, TX 77843 USA

[3] RAS, Inst Appl Phys, Nizhnii Novgorod, Russia

[4] Max Planck Inst Quantenopt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.86.628

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We prove that it is possible to freeze a light pulse (i.e., to bring it to a full stop) or even to make its group velocity negative in a coherently driven Doppler broadened atomic medium via electromagnetically induced transparency (EIT). This remarkable phenomenon of the ultraslow EIT polariton is based on the spatial dispersion of the refraction index n(w,k), i.e., its wave number dependence, which is due to atomic motion and provides a negative contribution to the group velocity. This is related to, but qualitatively different from, the recently observed light slowing caused by large temporal (frequency) dispersion.

引用

页码：628 / 631

页数：4

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