Terahertz Imaging System based on Bessel Beams via 3D Printed axicons at 100GHz

被引：3
|
作者：
Liu, Changming [1 ]
Wei, Xuli [1 ]
Zhang, Zhongqi [1 ]
Wang, Kejia [1 ]
Yang, Zhengang [1 ]
Liu, Jinsong [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
来源：
INFRARED, MILLIMETER-WAVE, AND TERAHERTZ TECHNOLOGIES III | 2014年 / 9275卷
关键词：
Terahertz imaging; 3D printing; Bessel beam; Axicon; QBB;
D O I：
10.1117/12.2085082
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Terahertz (THz) imaging technology shows great advantage in nondestructive detection (NDT), since many optical opaque materials are transparent to THz waves. In this paper, we design and fabricate dielectric axicons to generate zeroth order-Bessel beams by 3D printing technology. We further present an all-electric THz imaging system using the generated Bessel beams in 100GHz. Resolution targets made of printed circuit board are imaged, and the results clearly show the extended depth of focus of Bessel beam, indicating the promise of Bessel beam for the THz NDT.
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页数：6
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