Changchun Institute of Optics,Fine Mechanics and Physics,CAS
The quantum coherent left handness of Lambda-type four level system in Er3+ : YAlO3 crystal | |
其他题名 | 论文其他题名 |
Liu C. X.; Zhang J. S.; Liu J. Y.; Jin G. | |
2009 | |
发表期刊 | Acta Physica Sinica |
ISSN | 1000-3290 |
卷号 | 58期号:8页码:5778-5783 |
摘要 | We first calculated the negative refractive index on the solid Er3+ :YAlO3 crystal with a Lambda-type four-level scheme proposed for atomic vapour by Thommen and Mandel and Kastel using quantum interference and electromagnetically induced transparency (EIT). It is shown that the frequency band with the negative index is wider (similar to 1 MHz) than that reported previously. Usually, Im[n] is always positive, corresponding to absorption,and the ratio of refraction to absorption, | Re[n]/Im[n] |, is only of the order of unity. In our case the ratio | Re[n]/Im[n] | = 4.6,which indicates that the absorption has been well suppressed by EIT approach. The negative Im[n] may be related to the stimulated emission of I-4(13/2) -> I-4(15/2) of rare earth ion Er3+. It indicates that the rare earth ion doped material with abundant energy levels and various electric and magnetic transitions is an outstanding and practical candidate for electromagnetically induced negative refractive index material. |
收录类别 | SCI |
语种 | 中文 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/25643 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Liu C. X.,Zhang J. S.,Liu J. Y.,et al. The quantum coherent left handness of Lambda-type four level system in Er3+ : YAlO3 crystal[J]. Acta Physica Sinica,2009,58(8):5778-5783. |
APA | Liu C. X.,Zhang J. S.,Liu J. Y.,&Jin G..(2009).The quantum coherent left handness of Lambda-type four level system in Er3+ : YAlO3 crystal.Acta Physica Sinica,58(8),5778-5783. |
MLA | Liu C. X.,et al."The quantum coherent left handness of Lambda-type four level system in Er3+ : YAlO3 crystal".Acta Physica Sinica 58.8(2009):5778-5783. |
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