Design of broadband polarization converter for terahertz waves

Abstract

A broadband reflective polarization converter is proposed. The unit cell of polarization converter is composed of a single-split resonant ring, a double-split resonant ring, a dielectric substrate and a metallic ground. The simulated results show that the polarization converter can convert x-polarized waves into y-polarized waves and obtain a broadband polarization conversion from 0.501 0 THz to 1.390 0 THz with the polarization conversion ratio (PCR) beyond 80% at normal incidence. Moreover, the surface current distributions are investigated to explain the polarization conversion mechanism. Finally, a good agreement is achieved between simulated and measured results. The polarization converter can be applied in terahertz imaging, communication and stealthy technology.

References

[1] Li J, Zhang A, Joines W T and Liu QH, A miniaturized circularly polarized microstrip antenna with bandwidth enhancement, IEEE International Symposium on Antennas and Propagation, 41 (2016).

[2] RyzhkovA V, GiangrandeS E, MelnikovV M, SchuurT J. Journal of Atmospheric & Oceanic Technology, 2004, 22: 1138

[3] MaltsevA, PerahiaE, MaslennikovR, SevastyanovA, LomayevA, KhoryaevA. IEEE Antennas & Wireless Propagation Letters, 2010, 9: 413

[4] MeissnerT, WentzF J. IEEE Transactions on Geoscience & Remote Sensing, 2006, 44: 506

[5] BaoQ, ZhangH, WangB, NiZ, LimC, WangY, TangD, LohK. Nature Photonics, 2011, 5: 411

[6] ZhengJ, WenX. Optics Express, 2014, 22: 28292

[7] ChengY Z, WithayachumnankulW, UpadhyayA, HiadlandD, NieY, GongR, BhaskaranM, SriramS, AbbottD. Applied Physics Letters, 2014, 105: 26

[8] ChenH Y, WangJ F, MaH, QuS B, ZhangJ Q, XuZ, ZhangA X. Chinese Physics B, 2015, 24: 253

[9] LiuY, XiaS, ShiH, ZhangA, XuZ. Applied Physics B, 2016, 122: 178

[10] LiS J, XuL M, CaoX Y, HanJ, ZhangZ, LiuX, FengK, ZhangC. Radio–engineering, 2016, 25: 707

[11] XuK K, XiaoZ Y, TangJ Y. Plasmonics, 2016, 12: 1

[12] ZhouL, ZhaoG Z, LiY H. Laser & Optoelectronics Progress, 2018, 55: 041602

[13] LiY H, ZhouL, ZhaoG Z. Chinese Journal of Laser, 2018, 45: 0314001

[14] FuY N, ZhangX Q, ZhaoG Z, LiY H, YuJ Y. Acta Physica Sinica, 2017, 66: 180701

[15] ChenH T, TaylorA J, YuN. Reports on Progress in Physics Physical Society, 2016, 79: 076401

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