The quantum coherent left handness of Lambda-type four level system in Er3+ : YAlO3 crystal

	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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