Inverse Smith-Purcell Effect in Photonic Crystals

被引：0

作者：

Zhang, Xiaoqiuyan ^{[1
,2
]}

Hu, Min ^{[1
,2
]}

Gong, Sen ^{[1
,2
]}

Wu, Zhenhua ^{[1
,2
]}

Cao, Yueheng ^{[1
,2
]}

Hu, Pengfei ^{[1
,2
]}

Liu, Shenggang ^{[1
,2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Terahertz Res Ctr, Chengdu 610054, Peoples R China

[2] Minist Educ, Key Lab Terahertz Technol, Chengdu 610054, Peoples R China

来源：

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2018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：

Free electrons passing along the surface of the grating produce a stimulated emission, referred to as the Smith-Purcell (SP) effect. Here we firstly report theoretically evidence of the inverse Smith-Purcell effect at about 300GHz (ISP) by loading the specially designed photonic crystals (PCs) with negative refractive on a slits structure, which could provide a new idea for coherent Smith-Purcell. The inverse Smith-Purcell effect reflect that with the observation moving from the front to the rear, the observation frequency change first from the intermediate frequency to the high frequency, and then from the low frequency to the intermediate frequency, which is different from the normal SP. The proposed ISP is of great significance for obtaining power enhanced, coherent and tunable terahertz radiation.

引用

页数：2

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