基于双层超材料中的电场增强效应增强光学透射
投稿时间:2018-08-04  修订日期:2018-11-04  点此下载全文
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作者单位E-mail
钟敏 贺州学院 zhongmin2012hy@163.com 
中文摘要:本文通过模拟验证了基于非空心双层超材料滤波器的透射增强, 所提出的结构包含覆盖在连续介电层上的连续金属膜。 与单金属层结构相比,可以明显提高所提出的双层结构的透射率。 模拟验证了介电层厚度和入射角对透射增强的影响。 发现当厚度h1为20nm时,实现了最大化的透射率增强。 此外,所提出的双层超材料滤波器在入射角达到45°时显示出透射率增强的稳定性。 由于其非空心化设计策略,所提出的双层超材料滤波器可以应用于许多潜在领域。
中文关键词:超材料,透射,吸收
 
Enhanced optical transmission based on the electric field enhancement effect in a double-layer metamaterialsMin Zhong<sub>1,2*</sub>
Abstract:Transmission enhancement is simulated verification based on a non-hollowing double layer of metamaterial filter. The proposed structure contains a continuous metallic film covering on a continuous dielectric layer. The transmission of the proposed double layer structure can be enhanced obviously comparing the single metal layer structure. The effects of the dielectric layer thickness and the incident angle on the transmission enhancement are simulated verification. It is found that the maximized transmittance enhancement is achieved when the thickness h1 is 20nm. Moreover, the proposed double layer metamaterial filter shows a stability of transmittance enhancement when the incident angle reaches to 45°. The proposed double layer metamaterial filter can be applied in many potential fields due to its non-hollowing design strategy.
keywords:metamaterials, transmission, absorption
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