Observation of linewidth narrowing due to a spontaneously generated coherence effect

被引：8

作者：

Tian Si-Cong ^{[1
,2
]}

Wang Chun-Liang ^{[3
]}

Kang Zhi-Hui ^{[1
,2
]}

Yang Xiu-Bin ^{[5
]}

Wan Ren-Gang ^{[4
]}

Zhang Xiao-Jun ^{[1
,2
]}

Zhang Hang ^{[5
]}

Jiang Yun ^{[1
,2
]}

Cui Hai-Ning ^{[1
,2
]}

Gao Jin-Yue ^{[1
,2
]}

机构：

[1] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China

[2] Jilin Univ, Minist Educ, Key Lab Coherent Light & Atom & Mol Spectroscopy, Changchun 130012, Peoples R China

[3] NE Normal Univ, Coll Phys, Changchun 130023, Peoples R China

[4] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China

[5] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 06期

基金：

中国国家自然科学基金;

关键词：

spontaneously generated coherence; resonance fluorescence; linewidth narrowing; atomic beam; RESONANCE-FLUORESCENCE; SPONTANEOUS EMISSION; ABSORPTION PROPERTIES; QUANTUM INTERFERENCE; 2-LEVEL ATOM; 4-LEVEL ATOM; DRIVEN; SPECTRUM; SYSTEM; LINES;

D O I：

10.1088/1674-1056/21/6/064206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the resonance fluorescence spectrum of an atomic three-level ladder system driven by two laser fields. We show that such a system emulates to a large degree a V-type atom with parallel dipole moments-the latter being a system that exhibits spontaneously generated coherence and can display ultrasharp spectral lines. We find a suitable energy scheme in a Rb-85 atom and experimentally observe the narrowing of the central peak in a rubidium atomic beam. The corresponding spectrum can convincingly demonstrate the existence of spontaneously generated coherence.

引用

页数：7

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