Line narrowing of electromagnetically induced transparency in Rb with a longitudinal magnetic field

被引：38

作者：

Iftiquar, S. M. ^{[1
]}

Natarajan, Vasant ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 01期

关键词：

atom-photon collisions; optical pumping; rubidium; self-induced transparency; spectral line narrowing; Zeeman effect; HYPERFINE SPECTROSCOPY; PRECISE MEASUREMENT; DRESSED STATES; LASER; RESOLUTION;

D O I：

10.1103/PhysRevA.79.013808

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Electromagnetically induced transparency (EIT) experiments in Lambda-type systems benefit from the use of hot vapor where the thermal averaging results in reducing the width of the EIT resonance well below the natural linewidth. Here, we demonstrate a technique for further reducing the EIT width in room-temperature vapor by the application of a small longitudinal magnetic field. The Zeeman shift of the energy levels results in the formation of several shifted subsystems; the net effect is to create multiple EIT dips each of which is significantly narrower than the original resonance. We observe a reduction by a factor of 3 in the D-2 line of Rb-87 with a field of 3.2 G.

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页数：5

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