Study on Applications of Terahertz technology

被引:0
作者
Luo Ji-jun [1 ]
Hou Su-xia [1 ]
Xu Jun [1 ]
Li Juan-juan [1 ]
机构
[1] Second Artillery Engn Inst, Sect Phys, Xian 710049, Shangxi, Peoples R China
来源
INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2007: LASER, ULTRAVIOLET, AND TERAHERTZ TECHNOLOGY | 2008年 / 6622卷
关键词
terahertz; terahertz sources; terahertz detection;
D O I
10.1117/12.790717
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
Terahertz (THz) technology, as new research topic and technology field which is paid more and more attention by the researchers and governments, has some unique properties which is different from other electromagnetic wave. THz wave is regarded to have potential application in many fields. Existing and emerging applications of terahertz technology in imaging, medicine, biology, space exploration, covert communications, compact radar ranges, industrial controls, terahertz microscopy, terahertz tomography, and homeland security have stimulated intensive research effort in photonics and electronics technologies bracketing the famous terahertz; gap from the high and low frequency sides, respectively. Cutoff frequencies and maximum frequencies of operation of InGaAs-based Heterostructure Bipolar Transistors and High Electron Mobility Transistors are now approaching or even exceeding 600 GHz. New ideas of using plasma resonances of two-dimensional electrons for tunable detection and emission of terahertz radiation are being explored and proven experimentally, Plasma effects in polarization-induced electrons and holes in granular pyroelectric/semiconductor heterostructures hold promise of an active THz medium tunable by external electric field or light.
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页数:7
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