通过补偿各向异性超材料棱镜的亚波长图像操纵
Sub-wavelength image manipulating through compensated anisotropic metamaterial prisms
摘要：
基于补偿双层各向异性超材料亚波长成像的概念，提出了一种可实现二维亚波长成像的补偿双层超材料棱镜对结构.通过合理设计对称和非对称补偿棱镜对结构，可以实现亚波长分辨率的平面像旋转、横向像移以及像放大。理论分析和全波电磁仿真都被用来验证所提出的棱镜结构的特性。利用所提出的AMM棱镜，具有亚波长特征的物体的平坦光学图像可以被投影并放大到波长尺度，从而允许通过常规光学器件对图像进行进一步的光学处理。
英文摘要：
Based on the concept of sub-wavelength imaging through compensated bilayer of anisotropic metamaterials (AMMs), which is an expansion of the perfect lens configuration, we propose two dimensional prism pair structures of compensated AMMs that are capable of manipulating two dimensional sub-wavelength images. We demonstrate that through properly designed symmetric and asymmetric compensated prism pair structures planar image rotation with arbitrary angle, lateral image shift, as well as image magnification could be achieved with sub-wavelength resolution. Both theoretical analysis and full wave electromagnetic simulations have been employed to verify the properties of the proposed prism structures. Utilizing the proposed AMM prisms, flat optical image of objects with sub-wavelength features can be projected and magnified to wavelength scale allowing for further optical processing of the image by conventional optics.
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