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SPP-assisted sub-wavelength reflection-type THz imaging with THz time-domain spectrometer
Author(s): Senfeng Lai; Yanghui Wu; Wen Wu; Wenhua Gu
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Paper Abstract

THz imaging has become a hot research topic in recent years, thanks to its merits of non-contact, strong penetration, immunity to hostile environments, and nondestructive detection. However, its spatial resolution is limited by the relatively long wavelength, so the location and measurement precision can only reach the level of the imaging wavelength, which has become a severe limitation of THz imaging. A simple way using surface plasmonic polartons (SPPs) to improve the location and measurement precision of THz by one order of magnitude was proposed in this manuscript, which can realize subwavelength THz imaging.

Paper Details

Date Published: 25 August 2017
PDF: 6 pages
Proc. SPIE 10346, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV, 1034630 (25 August 2017); doi: 10.1117/12.2274536
Show Author Affiliations
Senfeng Lai, Nanjing Univ. of Science and Technology (China)
Yanghui Wu, Nanjing Univ. of Science and Technology (China)
Wen Wu, Nanjing Univ. of Science and Technology (China)
Wenhua Gu, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 10346:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV
Din Ping Tsai; Takuo Tanaka, Editor(s)

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