Ultrafast Refractive Index Control of THz Graphene Metamaterials

被引：0
|
作者：
Min, Bumki [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mech Engn, Taejon 305751, South Korea
来源：
2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2013年
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D O I：
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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 graphene-metamaterial 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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