Generation of Terahertz Vortices Using Metasurface With Circular Slits

We propose a metal device containing circular slits to generate a terahertz (THz) orbital angular momentum beam with numerical simulations. The estimation of the polarization extinction ratio is above 20 dB over the bandwidth ranging from 0.3 to 3 THz, and a mode purity of TC = 1 or -1 is close to 1...

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Bibliografski detalji

Glavni autori:	Hailong Zhou, Jianji Dong, Siqi Yan, Yifeng Zhou, Xinliang Zhang
Format:	Artigo
Jezik:	Inglês
Izdano:	IEEE 2014-01-01
Serija:	IEEE Photonics Journal
Teme:	Orbital angular momentum terahertz metamaterials
Online pristup:	https://ieeexplore.ieee.org/document/6926759/
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