Negative permeability in a Λ-type three-level atomic vapor

被引：7
|
作者：
Shen, J. Q.
Almloef, J.
He, S.
机构：
[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China
[2] Zhejiang Univ, Joint Res Ctr Photon, Royal Inst Technol, Hangzhou 310058, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2007年 / 87卷 / 02期
关键词：
D O I：
10.1007/s00339-006-3831-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new approach is suggested to realize negative magnetic permeability that follows directly from quantum mechanics. It is shown that a Delta-type three-level atomic system with proper atomic parameters can give rise to striking magnetic responses, which could exhibit negative permeability in an optical frequency band. Both steady and transient behaviors of the magnetic permeability in the atomic vapor are studied. The present negative-permeability vapor could be mixed with a quantum coherent vapor whose electric permittivity is negative. Such a mixed vapor may give an isotropic left-handed vapor medium at the atomic-scale level.
引用
收藏
页码：291 / 295
页数：5
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