Negative refractive index in a four-level atomic system
文献类型：期刊论文
| 作者 | Zhang Zhen-Qing1,3,4; Liu Zheng-Dong1,2,3; Zhao Shun-Cai2,3; Zheng Jun3,4; Ji Yan-Fang5; Liu Nian1,3,4 |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 20页码:5 |
| ISSN号 | 1674-1056 |
| 关键词 | quantum interference electromagnetically induction left-handed materials negative refractive index |
| DOI | 10.1088/1674-1056/20/12/124202 |
| 英文摘要 | A closed four-level system in atomic vapour is proposed, which is made to possess left handedness by using the technique of quantum coherence. The density matrix method is utilized in view of the rotating-wave approximation and the effect of a local field in dense gas. The numerical simulation result shows that the negative permittivity and the negative permeability of the medium can be achieved simultaneously (i.e. the left handedness) in a wider frequency band under appropriate parameter conditions. Furthermore, when analysing the dispersion property of the left-handed material, we can find that the probe beam propagation can be controlled from superluminal to subluminal, or vice versa via changing the detuning of the probe field. |
| WOS关键词 | LOW-FREQUENCY PLASMONS ; KERR NONLINEARITY ; PERMITTIVITY ; TRANSMISSION ; PERMEABILITY |
| 资助项目 | National Natural Science Foundation of China[60768001] ; National Natural Science Foundation of China[10464002] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000298493500036 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/35074]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu Zheng-Dong |
| 作者单位 | 1.Nanchang Univ, Inst Modern Phys, Nanchang 330047, Peoples R China 2.Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Peoples R China 3.Nanchang Univ, Engn Res Ctr Nanotechnol, Nanchang 330047, Peoples R China 4.Nanchang Univ, Sch Sci, Nanchang 330031, Peoples R China 5.Wenzhou Univ, Sch Foreign Languages, Wenzhou 325035, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Zhen-Qing,Liu Zheng-Dong,Zhao Shun-Cai,et al. Negative refractive index in a four-level atomic system[J]. CHINESE PHYSICS B,2011,20:5. |
| APA | Zhang Zhen-Qing,Liu Zheng-Dong,Zhao Shun-Cai,Zheng Jun,Ji Yan-Fang,&Liu Nian.(2011).Negative refractive index in a four-level atomic system.CHINESE PHYSICS B,20,5. |
| MLA | Zhang Zhen-Qing,et al."Negative refractive index in a four-level atomic system".CHINESE PHYSICS B 20(2011):5. |
入库方式： OAI收割
来源：近代物理研究所
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