| Λ型四能级系统中电磁诱导的左手效应 |
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| 引用本文： | 王祥伟,张向阳. Λ型四能级系统中电磁诱导的左手效应[J]. 江南大学学报(自然科学版), 2010, 9(1): 110-114 |
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| 作者姓名： | 王祥伟 张向阳 |
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| 作者单位： | 江南大学,理学院,江苏,无锡,214122 |
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| 摘 要： | 运用密度矩阵方程理论，研究了Λ型四能级与多模光场相互作用系统中的相对介电常数和相对磁导率的性质。数值模拟表明，在适当的参数取值下，系统的相对介电常数和相对磁导率可以同时为负值，因此可以在此系统中实现左手效应。在一定范围内，连续改变相干场的拉比频率强度，实现左手效应的区域作相应的变化，并研究了在实现左手效应区间内折射率的性质。
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| 关 键 词： | 量子干涉 电磁诱导 左手效应 负折射率 |
Electromagnetically Induced Left Handed-Effect in a Four-Level Atomic System |
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| WANG Xiang-wei,ZHANG Xiang-yang. Electromagnetically Induced Left Handed-Effect in a Four-Level Atomic System[J]. Journal of Southern Yangtze University:Natural Science Edition, 2010, 9(1): 110-114 |
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| Authors: | WANG Xiang-wei ZHANG Xiang-yang |
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| Affiliation: | School of Science;Jiangnan University;Wuxi 214122;China |
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| Abstract: | Using matrix equation theory,the properties of the relative dielectric permittivity and the relative magnetic permeability are investigated in a lamda-type four-level atomic system.By the means of numerical method,the real parts of both relative dielectric permittivity and the relative magnetic permeability will be negative simultaneously under the condition of choosing appropriately parameters,so the left handedness effect is obtained.In a certain scope,by adjusting the intensity of Rabi frequencies of the... |
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| Keywords: | quantum coherence electromagnetically induction left handedness effect negative refractive index |
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