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Phase-Controlled Planar Metalenses for High-Resolution Terahertz Focusing

We experimentally demonstrate that high-resolution terahertz focusing can be realized in planar metalenses, which consist of arrays of different V-shaped antenna units on a silicon substrate. Numerical results show that a larger numerical aperture of metalenses can provide smaller full width at half...

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Principais autores: Xin Yu, Yun Shen, Guohong Dai, Liner Zou, Tailin Zhang, Xiaohua Deng
Format: Artigo
Sprog:Inglês
Udgivet: MDPI AG 2021-04-01
Serier:Photonics
Fag:
metasurface
terahertz
metalenses
focusing
Online adgang:https://www.mdpi.com/2304-6732/8/5/143
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