Dark-modes excitation in coupled nano Fabry-Perot structure induced by symmetry breaking
作者： Nathalie Bardou , Julien Jaeck , Patrick Bouchon , Benjamin Vest , Riad Haidar
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摘要: Absorbing metamaterials have attracted a widespread interest but suffer from the metallic ohmic losses that limits their Q-factor to values around 10. In this paper, we report engineering and experimental characterization of high Q dark-mode in metasurface resulting coupling several individual nano-Fabry-Perot structures supporting low-contrast resonances. The resonance has above 20 nearly total absorption. Moreover, also demonstrate resonances can be excited simultaneously, by exploiting various pairs nano Fabry-Perot resonators within same subwavelength period. Finally, resonance's depends monotonously on thickness reach up 85.
arxiv.org参考文章(26)
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