Polarization-multiplexed broadband hologram on all-dielectric metasurface
Polarization-multiplexed broadband hologram on all-dielectric metasurface
复制标题
全电介质超表面上的偏振复用宽带全息图
DOI：
10.1209/0295-5075/124/14003
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Meng X F
中科院分区：
文献类型：
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作者：
Li Z F;Qiao P W;Dong G Y;Shi Y S;Bi K;Yang X L;Meng X F
超表面由于其独特的工程界面在控制光的振幅、相位和偏振等方面具有上级性能，成为设计各种功能器件的重要平台。提出了一种全介质超颖表面的偏振选择全息图，用于再现不同线偏振状态下的复用全息图像。与早期由等离子体谐振器组成的超颖表面在可见光谱下具有很大的欧姆损耗不同，由硅纳米块制成的设计超颖表面在600至760 nm的带宽上支持更宽的光谱响应，具有高衍射效率和不同偏振态之间的低串扰。仿真和实验都证明了偏振复用超颖表面全息图的可行性和可调节性。我们相信它将在光学功能器件的设计中具有重要的技术潜力。
Metasurface is emerging as an important platform to design various functional devices due to the superior capability in controlling amplitude, phase and polarization of light through its ultrathin engineering interface. A polarized-selective hologram of all-dielectric metasurface is proposed to reconstruct multiplexed holographic images on different linear polarization status. Unlike early metasurfaces composed of plasmonic resonators with great ohmic loss at visible spectrum, the designed metasurface made of silicon nanoblocks supports a broader spectral response over the bandwidth from 600 to 760 nm with high diffraction efficiency and low crosstalk between different polarization states. Both simulation and experiment have demonstrated the feasibility and adjustability of the polarization-multiplexed metasurface hologram. We believe it will have significant technological potential in the design of optical functional devices.