Terahertz Radiation Generated by Laser Induced Plasma in Photoconductive Antenna

被引：3
|
作者：
Hou, Lei [1 ]
Chen, Suguo [1 ]
Yan, Zhijin [1 ]
Shi, Wei [1 ]
机构：
[1] Xian Univ Technol, Dept Appl Phys, Xian 710048, Peoples R China
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2013年 / 49卷 / 09期
基金：
中国国家自然科学基金; 国家教育部博士点专项基金资助; 中国博士后科学基金;
关键词：
Langmuir wave; photoconductive antenna; plasma; sheath; LANGMUIR;
D O I：
10.1109/JQE.2013.2275019
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：
To theoretically analyze the spectral characteristics of terahertz (THz) electromagnetic radiation generated by photoconductive antennas, the paper proposed a model by considering laser induced plasma in photoconductive antenna. At a bias voltage, plasma oscillation generates Langmuir wave that propagates in the inhomogeneous plasma in the direction of density gradient, and is converted to THz radiation after a converse zone. The influence factors of the bandwidth and peak frequency are analyzed by the model and testified by experiment.
引用
收藏
页码：785 / 789
页数：5
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