Ultrafast Refractive Index Control of Terahertz Graphene Metamaterials

被引：0
|
作者：
Lee, Seung Hoon [1 ]
Choi, Jeongmook [2 ]
Kim, Hyeon-Don [1 ]
Choi, Hyunyong [2 ]
Min, Bumki [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mech Engn, Taejon 305751, South Korea
[2] Yonsei Univ, Sch Elect & Elect Engn, Seoul 120749, South Korea
来源：
2013 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR) | 2013年
关键词：
D O I：
暂无
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：
We present an ultrafast dynamics of THz graphenemetamaterial hybrid devices, where the refractive index and the conductivity are largely modulated by electrical and optical methods. Unprecedentedly large modulation of refractive index and the pump-induced effective negative conductivity are investigated by an ultrafast time-resolved optical-pump THz-probe spectroscopy with varying gate voltage.
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页数：2
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