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Proceedings Paper

A new regular hexagonal THz wave modulator based on metamaterials and vanadium oxide phase-change materials
Author(s): Jinhua Jin; Wei Wang; Zhe Chen; Zhenhua Du; Zhaoxiang Guo
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Paper Abstract

In this paper, a novel terahertz modulator using the phase transition characteristics of vanadium dioxide to achieve both band-pass and band-stop filter states is proposed. The regular hexagonal split-ring is used as a unit structure, and the center frequency can be changed by changing the size of the regular hexagon. The simulation results show that any frequency between 0.1~1THz can be used as its center frequency. In the case of 140 um regular hexagon cell, the band-pass filter state shows that the -3dB bandwidth reaches to 100 GHz, and the band-stop filter state shows that the -20dB bandwidth reaches to 75 GHz. Furthermore, a mirror-type regular hexagonal structure is designed as unit cell, which can improve the modulator performance in both states.

Paper Details

Date Published: 9 November 2018
PDF: 6 pages
Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108261B (9 November 2018); doi: 10.1117/12.2501197
Show Author Affiliations
Jinhua Jin, Yunnan Normal Univ. (China)
Yunnan Key Lab. of Opto-electronic Information Technology (China)
Wei Wang, Yunnan Normal Univ. (China)
Yunnan Key Lab. of Opto-electronic Information Technology (China)
Zhe Chen, Yunnan Key Lab. of Opto-electronic Information Technology (China)
Yunnan Univ. (China)
Zhenhua Du, Yunnan Normal Univ. (China)
Yunnan Key Lab. of Opto-electronic Information Technology (China)
Zhaoxiang Guo, Yunnan Normal Univ. (China)
Yunnan Key Lab. of Opto-electronic Information Technology (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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