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

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【Author】 Li Lu-Ming a),Hu Zhen-Yan b),Luo Bin b),and Guo Hong 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

【机构】 Department of Communication,Jiangxi Electric Power Information and Communication Company； 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；

【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 mW.更多还原

【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.更多还原

【关键词】 degenerate two-level atomic system； breaking point； group velocity；
【Key words】 degenerate two-level atomic system； breaking point； group velocity；

【基金】 Project supported by the Key Program of the National Natural Science Foundation of China (Grant No.60837004);the Key Project of Jiangxi Electric Power Company (Grant Nos.200950801 and 200950802)

【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2010年06期

【分类号】O562;O431.2
【下载频次】11

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