| Controllable Optical Bistability and Multistability in a Four-Level Atomic System with Closed-Loop Configuration |
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| 引用本文： | Lü Xin-You,LI Jia-Hua,LIU Ji-Bing. Controllable Optical Bistability and Multistability in a Four-Level Atomic System with Closed-Loop Configuration[J]. 中国物理快报, 2007, 24(1): 108-111 |
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| 作者姓名： | Lü Xin-You LI Jia-Hua LIU Ji-Bing |
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| 作者单位： | Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| 基金项目： | Supported in part by the Nationai Naturai Science Foundation of China under Grant Nos 10575040 and 10634060. The authors would like to thane Professor Wu Ying for helpful discussion and encouragement. |
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| 摘 要： | We theoretically investigate optical bistability （OB） and multistability （OM） behaviour of a closed-loop configuration atomic system driven by a degenerate coupling- field and a degenerate probe field inside a unidirectional ring cavity. It is found that the OB and OM behaviour can be controlled by adjusting- the intensity and the frequency detuning of the coupling- field, respectively. Interestingly, our numerical results show that it is easy to realize the transition from OB to OM or vice versa by adjusting- the intensity of the coupling- field under a appropriate frequency detuning. The effect of the atomic cooperation parameter on the OB behaviour is also discussed.
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| 关 键 词： | 可控制光学 双稳定性 系统构型 物理学 |
| 修稿时间： | 2006-06-26 |
Controllable Optical Bistability and Multistability in a Four-Level Atomic System with Closed-Loop Configuration |
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| L,#; Xin-You , LI Jia-Hua , LIU Ji-Bing. Controllable Optical Bistability and Multistability in a Four-Level Atomic System with Closed-Loop Configuration[J]. Chinese Physics Letters, 2007, 24(1): 108-111 |
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| Authors: | L&# Xin-You , LI Jia-Hua , LIU Ji-Bing |
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| Affiliation: | Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Abstract: | We theoretically investigate optical bistability (OB) and multistability (OM) behaviour of a closed-loop configuration atomic system driven by a degenerate coupling field and a degenerate probe field inside a unidirectional ring cavity. It is found that the OB and OM behaviour can be controlled by adjusting the intensity and the frequency detuning of the coupling field, respectively. Interestingly, our numerical results show that it is easy to realize the transition from OB to OM or vice versa by adjusting the intensity of the coupling field under a appropriate frequency detuning. The effect of the atomic cooperation parameter on the OB behaviour is also discussed. |
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| Keywords: | 42.50.Gy 42.65.Pc 42.50.Md |
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