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Proceedings Paper

Terahertz microstructure for artificial birefringence and its applications
Author(s): Fei Fan; Jiang Qiu; Qian-Yi Mu; Sheng-Jiang Chang
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Paper Abstract

Our recent research work on artificial birefringence and broadband polarization converter in terahertz (THz) functional devices was reviewed in this paper, we proposed the subwavelength dielectric gradient grating structure with artificial high birefringence, broadband and low dispersion, and the dielectric metasurface with line-square compound lattice which can realize polarization dependent EIT effect with a large artificial birefringence effect. On the basis, we presented a compound metasurface and a coupled dielectric-metal grating for broadband THz wave polarization conversion and asymmetric transmission. Moreover, we introduced two-dimensional materials into THz polarization devices, and proposed a switchable quarter-wave plate based on graphene grating and a carbon nanotube attached subwavelength grating for broadband THz polarization conversion and dispersion control. This work has greatly promoted the development and practical application of THz polarization devices.

Paper Details

Date Published: 9 November 2018
PDF: 11 pages
Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108260D (9 November 2018); doi: 10.1117/12.2324953
Show Author Affiliations
Fei Fan, Nankai Univ. (China)
Jiang Qiu, Nankai Univ. (China)
Qian-Yi Mu, Nankai Univ. (China)
Sheng-Jiang Chang, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 10826:
Infrared, Millimeter-Wave, and Terahertz Technologies V
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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