| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Planar Magnetic Metamaterial Slabs for Magnetic Resonance Imaging Applications |
| LI Chun-Lai1**, GUO Jie1, ZHANG Peng2, YU Quan-Qiang1, MA Wei-Tao1, MIAO Xi-Gen1, ZHAO Zhi-Ya1, LUAN Lin1** |
1Shenzhen Key Laboratory of Optical and Terahertz Meta-RF, Kuang-Chi Institute of Advanced Technology, Shenzhen 518057
2Shenyang Aircraft Design and Research Institute, Shenyang 110035
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| Cite this article: |
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LI Chun-Lai, GUO Jie, ZHANG Peng et al 2014 Chin. Phys. Lett. 31 077801 |
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Abstract A type of planar magnetic metamaterial is proposed with a square winding microstructure as a superlens for magnetic resonance imaging (MRI) applications. A direct magnetic field mapping measurement demonstrates that the radio-frequency magnetic field passing through the superlens is increased by as high as 46.9% at the position of about 3 cm behind the superlens. The resonance frequency of the fabricated slabs is found to be in good agreement with the target frequency (63.6 MHz) for a 1.5 T MRI system. MRI experiments with the magnetic superlens show that the intensity of the image and the SNR (signal-to-noise ratio) are both enhanced, implying promising MRI applications of our planar magnetic superlens.
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Published: 30 June 2014
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| PACS: |
78.67.Pt
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(Multilayers; superlattices; photonic structures; metamaterials)
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81.05.Xj
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(Metamaterials for chiral, bianisotropic and other complex media)
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83.85.Fg
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(NMR/magnetic resonance imaging)
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