Dr. Xiaolong You Profile

Dr. Xiaolong You

at Univ of Adelaide

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Proceedings Article | 12 April 2021 Presentation

Systematically designed broadband terahertz metasurfaces

Xiaolong You, Christophe Fumeaux, Withawat Withayachumnankul

Proceedings Volume 11725, 117250C (2021) https://doi.org/10.1117/12.2589637

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We propose an antireflection metasurface and a transmissive half-wave plate that are designed based on an extended semi-analytical approach. Simulations suggest that the antireflection metasurface can effectively suppress the reflection at an air-silicon interface to a level lower than −20 dB, while the transmission magnitude is higher than −0.2 dB from 203 to 357 GHz. Besides, the half-wave plate can maintain a simulated output wave extinction ratio above 15 dB from 219 to 334 GHz with a cross-polarization transmission higher than −1.4 dB. Importantly, the employed approach is capable of designing various metasurfaces to further explore the potential of terahertz waves.

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