Fiber-based swept-source terahertz radar

被引：22
|
作者：
Huang, Yu-Wei [1 ,2 ]
Tseng, Tzu-Fang [1 ,2 ]
Kuo, Chung-Chiu [1 ,2 ]
Hwang, Yuh-Jing [3 ]
Sun, Chi-Kuang [1 ,2 ,4 ]
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
[3] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan
[4] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan
来源：
OPTICS LETTERS | 2010年 / 35卷 / 09期
关键词：
SUBWAVELENGTH PLASTIC FIBER;
D O I：
10.1364/OL.35.001344
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate an all-terahertz swept-source imaging radar operated at room temperature by using terahertz fibers for radiation delivery and with a terahertz-fiber directional coupler acting as a Michelson interferometer. By taking advantage of the high water reflection contrast in the low terahertz regime and by electrically sweeping at a high speed a terahertz source combined with a fast rotating mirror, we obtained the living object's distance information with a high image frame rate. Our experiment showed that this fiber-based swept-source terahertz radar could be used in real time to locate concealed moving live objects with high stability. (C) 2010 Optical Society of America
引用
收藏
页码：1344 / 1346
页数：3
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