Tomographic Imaging Using Photonically Generated Low-Coherence Terahertz Noise Sources

被引：27
|
作者：
Isogawa, Takayuki [1 ]
Kumashiro, Takuto [2 ]
Song, Ho-Jin [3 ]
Ajito, Katsuhiro [4 ,5 ]
Kukutsu, Naoya [3 ]
Iwatsuki, Katsumi [6 ]
Nagatsuma, Tadao [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn Sci, Osaka 5608531, Japan
[2] Toyota Corp, Toyota, Japan
[3] Nippon Telegraph & Tel Corp, NTT Microsyst Integrat Labs, Atsugi, Kanagawa, Japan
[4] NTT Microsyst Integrat Labs, Smart Devices Lab, Terahertz Spectroscop Anal Project, Atsugi, Kanagawa, Japan
[5] NTT Sci & Core Technol Lab Grp, Atsugi, Kanagawa, Japan
[6] NTT Serv Integrat Labs, Atsugi, Kanagawa, Japan
来源：
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2012年 / 2卷 / 05期
关键词：
Imaging; low-coherence; noise sources; terahertz; tomography; RANGE;
D O I：
10.1109/TTHZ.2012.2208745
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：
Three-dimensional (3D) terahertz (THz) imaging or THz tomography has recently proven to be powerful for non-destructive testing of industrial materials and structures. In order to reduce complexity and cost of conventional THz tomography systems, we propose a new approach using broadband THz noise sources based on amplified spontaneous emission noise, which is analogous to the optical coherence tomography (OCT) using broadband infrared sources. We have experimentally demonstrated a 3D imaging system with depth and spatial resolutions of 1 and 2 mm, respectively, by 280-380 GHz band noise signals.
引用
收藏
页码：485 / 492
页数：8
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