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Using Inductance as a Tuning Parameter for RF meta-atoms

Nano-Micro Letters 2012年第2期4卷 103-109页

作者： Derrick Langley Ronald A.Coutu Peter J.Collins Air Force Institute of Technology Wright-Patterson Air Force Base

The resonant frequency of metamaterials structured with split ring resonator(SRR) meta-atoms is determined primarily through the capacitance and inductance of the individual meta-atoms. Two designs that vary inductance incrementally were modeled, simulated, fabricated, and tested to investigate the role inductance plays in metamaterial designs. The designs consisted of strategically adding sections to the SRR to increase the inductance, but in a manner that minimized capacitance variations. Each design showed a shift in resonant frequency that was proportional to the length of the added section. As the length of each section was increased, the resonant frequency shifted from 2.78 GHz to 2.18 GHz.

关键词： Inductance meta-atom metamaterial Split Ring Resonator Radio Frequency Resonance

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Geometric and physical configurations of meta-atoms for advanced metasurface holography

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InfoMat 2021年第7期3卷 739-754页

作者： Joohoon Kim Younghwan Yang Trevon Badloe Inki Kim Gwanho Yoon Junsuk Rho Department of Mechanical Engineering Pohang University of Science and TechnologyPohangSouth Korea Department of Manufacturing Systems and Design Engineering Seoul National University of Science and TechnologySeoulSouth Korea Department of Chemical Engineering Pohang University of Science and TechnologyPohangSouth Korea

metasurfaces consisting of subwavelength structures,so-called meta-atoms,have steadily attracted considerable attention for advanced holography due to their advantages in terms of high-resolution holographic images,large field of view,and compact device *** contrast to conventional holographic displays using bulky conventional diffractive optical elements,metasurface holography enables arbitrary complex wavefront shaping with a much smaller *** this review,we classify metasurface holography according to the meta-atom design methodologies,which can further expand hologram *** describe light-matter interactions,particularly in metasurface systems,using the relevant the Jones matrix to rigorously explain modulations of the amplitude,phase,and polarization of *** different types of metaatoms are presented,and the corresponding achievable wavefronts that form the holographic images in the far-field are also *** a simple classification will give a straightforward approach to design and further realize advanced metasurface holographic devices.

关键词： Jones calculus meta-atom metahologram metamaterial metasurface

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