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使用双层超表面的多重电磁诱导透明模拟

Analog of multiple electromagnetically induced transparency using double-layered metasurfaces.

作者信息

Liu Siyuan, Xu Zhixia, Yin Xiaoxing, Zhao Hongxin

机构信息

State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, 210096, China.

出版信息

Sci Rep. 2020 May 21;10(1):8469. doi: 10.1038/s41598-020-65418-x.

DOI:10.1038/s41598-020-65418-x
PMID:32439938
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7242346/
Abstract

We reported an analog of electromagnetically induced transparency (A-EIT) featured by double transparent peaks in the spectrum. The A-EIT is realized by double-layered metasurface which consists of spoof localized surface plasmons (S-LSP) and cut-wire (CW)-square rings (SR) hybrid. Electric and magnetic S-LSP are excited as bright and dark modes respectively then couple with resonant modes of CW and SR simultaneously to achieve multiple A-EIT. Two bright modes of the electric S-LSP and SR are excited by external electric field directly that produce a bright-bright mode A-EIT. Moreover, the magnetic S-LSP, which cannot be excited by external field directly, is excited through near field coupling from CW, inducing another bright-dark mode A-EIT. Theoretical analysis with corresponding experiment in microwave band are introduced for better insights into physical essence of the double-peaks A-EIT.

摘要

我们报道了一种光谱中具有双透明峰特征的电磁诱导透明类似物(A-EIT)。A-EIT由双层超表面实现,该双层超表面由仿表面局域等离子体(S-LSP)和切割线(CW)-方环(SR)混合结构组成。电S-LSP和磁S-LSP分别作为亮模式和暗模式被激发,然后同时与CW和SR的共振模式耦合,以实现多个A-EIT。电S-LSP和SR的两个亮模式直接由外部电场激发,产生亮-亮模式A-EIT。此外,不能直接由外部场激发的磁S-LSP通过来自CW的近场耦合被激发,诱导出另一个亮-暗模式A-EIT。引入了在微波波段的理论分析及相应实验,以便更好地洞察双峰A-EIT的物理本质。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/b58f4bcbcdbd/41598_2020_65418_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/eb589acce900/41598_2020_65418_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/8974d6e4f5a1/41598_2020_65418_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/7e5f2d960ed1/41598_2020_65418_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/93dfd8fc5845/41598_2020_65418_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/cc8fb320002c/41598_2020_65418_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/6681191e3e07/41598_2020_65418_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/f5f6bc5d3493/41598_2020_65418_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/b58f4bcbcdbd/41598_2020_65418_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/eb589acce900/41598_2020_65418_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/8974d6e4f5a1/41598_2020_65418_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/7e5f2d960ed1/41598_2020_65418_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/93dfd8fc5845/41598_2020_65418_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/cc8fb320002c/41598_2020_65418_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/6681191e3e07/41598_2020_65418_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/f5f6bc5d3493/41598_2020_65418_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a3e6/7242346/b58f4bcbcdbd/41598_2020_65418_Fig8_HTML.jpg

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