An extremely large group index via electromagnetically induced transparency in metamaterials

被引：12
|
作者：
Jahromi, A. Sayahian [1 ]
Askari, M. [2 ]
机构：
[1] Islamic Azad Univ, Zarghan Branch, Zarghan, Iran
[2] Salman Farsi Univ, Coll Sci, Dept Phys, Kazerun, Iran
来源：
JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS | 2014年 / 9卷
关键词：
Metamaterials; electromagnetically induced transparency; slow light; ATOMIC MEDIUM; LIGHT; PULSES; ANALOG;
D O I：
10.2971/jeos.2014.14048
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We numerically demonstrate a planar design of a metamaterial exhibiting electromagnetically induced transparency at gigahertz frequencies. The design is based on the coupling of two oppositely oriented semi split-rings in the same plane. A very large transmission contrast of about 60 dB between the peak of the EIT window and the dips of the transmission gaps is calculated. An extremely large group index associated with the resonant response in the transmission window is demonstrated, rendering the design suitable for slow light applications.
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页数：4
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