The breaking point between fast- and slow-light in adegenerate two-level atomic system

doi:10.1088/1674-1056/19/6/064206

中国物理B ›› 2010, Vol. 19 ›› Issue (6): 64206-064206.doi: 10.1088/1674-1056/19/6/064206

The breaking point between fast- and slow-light in adegenerate two-level atomic system

胡振燕¹, 罗斌¹, 郭弘¹, 李路明²

(1)CREAM Group, State Key Laboratory of Advanced Optical Communication Systems and Networks (Peking University) and Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China; (2)Department of Communication, Jiangxi Electric Power Information and Communication Company, Nanchang 330029, China

收稿日期:2009-08-12 出版日期:2010-06-15 发布日期:2010-06-15
基金资助:
Project supported by the Key Program of the National Natural Science Foundation of China (Grant No.~60837004) and the Key Project of Jiangxi Electric Power Company (Grant Nos.~200950801 and 200950802).

The breaking point between fast- and slow-light in adegenerate two-level atomic system

Li Lu-Ming(李路明)^a)†, Hu Zhen-Yan(胡振燕 )^b), Luo Bin(罗斌)^b), and Guo Hong(郭弘)^b)‡

^a Department of Communication, Jiangxi Electric Power Information and Communication Company, Nanchang 330029, China; ^b CREAM Group, State Key Laboratory of Advanced Optical Communication Systems and Networks (Peking University) and Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China

Received:2009-08-12 Online:2010-06-15 Published:2010-06-15
Supported by:
Project supported by the Key Program of the National Natural Science Foundation of China (Grant No.~60837004) and the Key Project of Jiangxi Electric Power Company (Grant Nos.~200950801 and 200950802).

摘要/Abstract

摘要： This paper investigates the breaking point between fast- and slow-light in a degenerate two-level atomic system, where fast-light can be converted to slow-light arbitrarily on a single transition line by adjusting the strength of the pumping field. An equivalent incoherent pumping rate is introduced in this simplified theoretical model which exploits the dependence of this feature. The experimental observation is presented as evidence of the breaking point where the injected power is about 0.08~{\rm mW}.

Abstract: This paper investigates the breaking point between fast- and slow-light in a degenerate two-level atomic system, where fast-light can be converted to slow-light arbitrarily on a single transition line by adjusting the strength of the pumping field. An equivalent incoherent pumping rate is introduced in this simplified theoretical model which exploits the dependence of this feature. The experimental observation is presented as evidence of the breaking point where the injected power is about 0.08~mW.

Key words: degenerate two-level atomic system, breaking point, group velocity

中图分类号: (Level crossing and optical pumping)

32.80.Xx

32.60.+i (Zeeman and Stark effects) 42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

李路明, 胡振燕, 罗斌, 郭弘. The breaking point between fast- and slow-light in adegenerate two-level atomic system[J]. 中国物理B, 2010, 19(6): 64206-064206.

Li Lu-Ming(李路明), Hu Zhen-Yan(胡振燕 ), Luo Bin(罗斌), and Guo Hong(郭弘). The breaking point between fast- and slow-light in adegenerate two-level atomic system[J]. Chin. Phys. B, 2010, 19(6): 64206-064206.

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The breaking point between fast- and slow-light in adegenerate two-level atomic system

The breaking point between fast- and slow-light in adegenerate two-level atomic system

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