Stimulated Terahertz Emission from Optically Pumped Graphene

被引:0
作者
Tombet, S. Boubanga [1 ]
Satou, A. [1 ]
Otsuji, T. [1 ]
Ryzhii, V.
机构
[1] Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 9808577, Japan
来源
2011 36TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2011年
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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 conduct time domain spectroscopy studies and shows that graphene sheet amplifies an incoming terahertz field. The graphene emission spectra dependency on laser pumping intensity shows a threshold like behavior, testifying the occurrence of the negative conductivity and the population inversion in the terahertz range, paving the way for a new class room temperature graphene based terahertz lasers.
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页数:1
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