Super-Precise Scale Bar for Reflection-Type THz Imaging

Senfeng Lai; Yanghui Wu; Jiayi Zhu; Wen Wu; Wenhua Gu

doi:10.1109/JPHOT.2017.2717861

IEEE Photonics Journal (Jan 2017)

Super-Precise Scale Bar for Reflection-Type THz Imaging

Senfeng Lai,
Yanghui Wu,
Jiayi Zhu,
Wen Wu,
Wenhua Gu

Affiliations

Senfeng Lai: School of Electronic and Optical Engineering, Nanjing University of Science and Tehchnology, Nanjing, China
Yanghui Wu: School of Electronic and Optical Engineering, Nanjing University of Science and Tehchnology, Nanjing, China
Jiayi Zhu: School of Electronic and Optical Engineering, Nanjing University of Science and Tehchnology, Nanjing, China
Wen Wu: School of Electronic and Optical Engineering, Nanjing University of Science and Tehchnology, Nanjing, China
Wenhua Gu: School of Electronic and Optical Engineering, Nanjing University of Science and Tehchnology, Nanjing, China

DOI: https://doi.org/10.1109/JPHOT.2017.2717861
Journal volume & issue: Vol. 9, no. 4
pp. 1 – 7

Abstract

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The reflection of terahertz wave from a metallic surface with subwavelength periodic structure was investigated experimentally and theoretically. It is shown that the spatial resolution of the reflection image can be increased drastically due to excitation of spoof surface plasmon polaritons. Theoretic analysis as well as experiment comparison with nonmetallic periodic structure verified this phenomenon. Based on this study, a super-precise scale bar is proposed to improve the location and measurement precision of THz imaging, which can improve the precision by one order of magnitude.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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