Dual-band electromagnetically induced transparency effect in asymmetrically coupled terahertz metamaterials

被引：0
|
作者：
Sarkar, Rakesh [1 ]
Devi, Koijam Monika [1 ]
Ghindani, Dipa [2 ]
Jain, Ravikumar [2 ]
Pattanayak, Arnab [2 ]
Prabhu, S. S. [2 ]
Kumar, Gagan [1 ]
机构：
[1] Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, Assam, India
[2] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India
来源：
2019 44TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2019年
关键词：
D O I：
10.1109/irmmw-thz.2019.8874299
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this article, we numerically and experimentally investigate a metamaterial geometry capable of exhibiting dual hand electromagnetic induced transparency (EIT) effect in terahertz frequency regime. The meta-molecule unit consists of two asymmetric C resonators, placed alternately on both sides of a cut-wire (CW). The near field coupling between the CW and C resonators of the MM structure leads to the evolution of the dual-band EIT effect. We observe that the dual-band EIT effect can be modulated by changing the distance between the CW and the 2C resonators. Our study can play an important role in the development of multi-band slow light devices, modulators and also for sensing applications.
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