Terahertz generation from graphene surface plasmon polaritons excited by a cyclotron electron beam

被引：0
|
作者：
Zhao, Tao [1 ,2 ]
Hu, Min [1 ,2 ]
Zhong, Renbin [1 ,2 ]
Chen, Xiaoxing [1 ,2 ]
Zhang, Ping [1 ,2 ]
Gong, Sen [1 ,2 ]
Zhang, Chao [2 ,3 ,4 ]
Liu, Shenggang [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, Terahertz Res Ctr, Chengdu 610054, Peoples R China
[2] Natl 2011 Project, Cooperat Innovat Ctr Terahertz Sci, Chengdu, Peoples R China
[3] Univ Wollongong, Sch Phys, Wollongong, NSW 2522, Australia
[4] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia
来源：
2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2016年
关键词：
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：
A novel physical mechanism is reported which can generate coherent and tunable terahertz (THz) radiation. Due to the natural periodicity of 2 pi of circular cylindrical graphene structure, the surface plasmon polaritions (SPPs), excited by a cyclotron electron beam (CEB), can be transformed into radiation. The radiation density is strongly enhanced over two orders, up to 10(5) W/cm(2). The radiation frequency can be widely tuned by adjusting the beam energy and chemical potential. This mechanism opens a way for developing room temperature, tunable, coherent and intense pulsed or even CW THz radiation sources to cover the whole THz frequency regime.
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页数：2
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