25 August 2017 SPP-assisted sub-wavelength reflection-type THz imaging with THz time-domain spectrometer
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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.
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Senfeng Lai, Yanghui Wu, Wen Wu, Wenhua Gu, "SPP-assisted sub-wavelength reflection-type THz imaging with THz time-domain spectrometer", Proc. SPIE 10346, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV, 1034630 (25 August 2017); doi: 10.1117/12.2274536; https://doi.org/10.1117/12.2274536
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