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Dielectric Meta-Holograms Enabled with Dual Magnetic Resonances in Visible Light
ACS Nano ( IF 15.8 ) Pub Date : 2017-09-14 00:00:00 , DOI: 10.1021/acsnano.7b04868
Zile Li 1 , Inki Kim 2 , Lei Zhang 3 , Muhammad Q. Mehmood 4 , Muhammad S. Anwar 5 , Murtaza Saleem 5 , Dasol Lee 2 , Ki Tae Nam 6 , Shuang Zhang 7 , Boris Luk’yanchuk 8, 9, 10 , Yu Wang 1 , Guoxing Zheng 1, 11 , Junsuk Rho 2, 12 , Cheng-Wei Qiu 13, 14
Affiliation  

Efficient transmission-type meta-holograms have been demonstrated using high-index dielectric nanostructures based on Huygens’ principle. It is crucial that the geometry size of building blocks be judiciously optimized individually for spectral overlap of electric and magnetic dipoles. In contrast, reflection-type meta-holograms using the metal/insulator/metal scheme and geometric phase can be readily achieved with high efficiency and small thickness. Here, we demonstrate a general platform for design of dual magnetic resonance based meta-holograms based on the geometric phase using silicon nanostructures that are quarter wavelength thick for visible light. Significantly, the projected holographic image can be unambiguously observed without a receiving screen even under the illumination of natural light. Within the well-developed semiconductor industry, our ultrathin magnetic resonance-based meta-holograms may have promising applications in anticounterfeiting and information security.

中文翻译:

在可见光下具有双磁共振的介电元全息图

使用基于惠更斯原理的高折射率介电纳米结构,已经证明了有效的透射型亚全息图。至关重要的是,明智地分别优化积木的几何尺寸,以实现电偶极子和磁偶极子的光谱重叠。相反,可以容易地以高效率和小厚度获得使用金属/绝缘体/金属方案和几何相的反射型亚全息图。在这里,我们展示了一个通用平台,用于基于几何相位,使用可见光四分之一波长厚的硅纳米结构设计基于双磁共振的元全息图。重要的是,即使在自然光的照射下,也可以在没有接收屏幕的情况下清晰地观察到投影的全息图像。
更新日期:2017-09-15
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