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Diatomic Metasurface for Vectorial Holography
Nano Letters ( IF 9.6 ) Pub Date : 2018-03-28 00:00:00 , DOI: 10.1021/acs.nanolett.8b00047 Zi-Lan Deng 1 , Junhong Deng 2 , Xin Zhuang 2 , Shuai Wang 1, 3 , Kingfai Li 2 , Yao Wang 4 , Yihui Chi 2 , Xuan Ye 1 , Jian Xu 1 , Guo Ping Wang 5 , Rongkuo Zhao 6 , Xiaolei Wang 3 , Yaoyu Cao 1 , Xing Cheng 2 , Guixin Li 2, 7 , Xiangping Li 1
Nano Letters ( IF 9.6 ) Pub Date : 2018-03-28 00:00:00 , DOI: 10.1021/acs.nanolett.8b00047 Zi-Lan Deng 1 , Junhong Deng 2 , Xin Zhuang 2 , Shuai Wang 1, 3 , Kingfai Li 2 , Yao Wang 4 , Yihui Chi 2 , Xuan Ye 1 , Jian Xu 1 , Guo Ping Wang 5 , Rongkuo Zhao 6 , Xiaolei Wang 3 , Yaoyu Cao 1 , Xing Cheng 2 , Guixin Li 2, 7 , Xiangping Li 1
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The emerging metasurfaces with the exceptional capability of manipulating an arbitrary wavefront have revived the holography with unprecedented prospects. However, most of the reported metaholograms suffer from limited polarization controls for a restrained bandwidth in addition to their complicated meta-atom designs with spatially variant dimensions. Here, we demonstrate a new concept of vectorial holography based on diatomic metasurfaces consisting of metamolecules formed by two orthogonal meta-atoms. On the basis of a simply linear relationship between phase and polarization modulations with displacements and orientations of identical meta-atoms, active diffraction of multiple polarization states and reconstruction of holographic images are simultaneously achieved, which is robust against both incident angles and wavelengths. Leveraging this appealing feature, broadband vectorial holographic images with spatially varying polarization states and dual-way polarization switching functionalities have been demonstrated, suggesting a new route to achromatic diffractive elements, polarization optics, and ultrasecure anticounterfeiting.
中文翻译：
矢量全息术的双原子超颖表面
具有超凡能力来处理任意波阵面的新兴超颖表面使全息照相术具有空前的前景。然而，除了其复杂的具有空间变化尺寸的亚原子设计之外，大多数报道的全息图还受到受限带宽限制的偏振控制。在这里，我们展示了一种基于双原子超表面的矢量全息新概念，该双原子超表面由两个正交的超原子构成的超分子组成。基于相位和偏振调制之间的简单线性关系，具有相同的亚原子的位移和方向，可以同时实现多种偏振态的有源衍射和全息图像的重建，这对于入射角和波长均具有鲁棒性。
更新日期：2018-03-28
中文翻译：
矢量全息术的双原子超颖表面
具有超凡能力来处理任意波阵面的新兴超颖表面使全息照相术具有空前的前景。然而，除了其复杂的具有空间变化尺寸的亚原子设计之外，大多数报道的全息图还受到受限带宽限制的偏振控制。在这里，我们展示了一种基于双原子超表面的矢量全息新概念，该双原子超表面由两个正交的超原子构成的超分子组成。基于相位和偏振调制之间的简单线性关系，具有相同的亚原子的位移和方向，可以同时实现多种偏振态的有源衍射和全息图像的重建，这对于入射角和波长均具有鲁棒性。
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