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Proceedings Paper

Terahertz imaging system based on bessel beams via 3D printed axicons at 100GHz
Author(s): Changming Liu; Xuli Wei; Zhongqi Zhang; Kejia Wang; Zhenggang Yang; Jinsong Liu
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Paper Abstract

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.

Paper Details

Date Published: 11 November 2014
PDF: 6 pages
Proc. SPIE 9275, Infrared, Millimeter-Wave, and Terahertz Technologies III, 92751Q (11 November 2014); doi: 10.1117/12.2085082
Show Author Affiliations
Changming Liu, Huazhong Univ. of Science and Technology (China)
Xuli Wei, Huazhong Univ. of Science and Technology (China)
Zhongqi Zhang, Huazhong Univ. of Science and Technology (China)
Kejia Wang, Huazhong Univ. of Science and Technology (China)
Zhenggang Yang, Huazhong Univ. of Science and Technology (China)
Jinsong Liu, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9275:
Infrared, Millimeter-Wave, and Terahertz Technologies III
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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