A forward calculation method to quickly realize the achromatic metasurface for arbitrary polarization control
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State Key Laboratory of Infrared Physics,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai

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This work was supported in part by the National Key Research and Development Program of China under Grant 2018YFA0306200 and Grant 2017YFA0205800; in part by the National Natural Science Foundation of China under Grant 61875218, Grant 61705249, Grant 61521005, Grant 61991440 and Grant 91850208; in part by the Youth Innovation Promotion Association of Chinese Academy of Sciences under Grant 2017285; in part by the Key Research Project of Frontier Science of Chinese Academy of Sciences under Grant QYZDJSSWJSC007; in part by the Strategic Priority Research Program of Chinese Academy of Sciences under Grant XDB43010200; in part by the Shanghai Rising-Star Program under Grant 20QA1410400; in part by the Shanghai Science and Technology Committee under Grant 18JC1420401 and Grant 20JC1416000, and in part by the Shanghai Municipal Science and Technology Major Project under Grant 2019SHZDZX01.

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    Abstract:

    In recent years, many advances have been made in polarization control and dispersion control of artificial microstructure. However, it is still a challenge to realize achromatic control of arbitrary polarization because the traditional way to calculate the manipulation of metasurface on elliptic polarization have to solve the equation for each piece of data. A direct calculation method based on coordinate transformation is proposed to quickly calculate the manipulation of metasurface elements on arbitrary polarization states. An achromatic focusing metasurface lens based on all-Si elliptic cylinder structure is designed to manipulates elliptical polarization states in the mid-infrared band. The result shows that this method and design can effectively control the elliptic polarization state under the condition of greatly simplifying the calculation process. Compared with the previously reported design based on circular polarization or non-polarization dependence, the application scope of the dispersion control of the metasurface is further expanded.

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History
  • Received:November 20,2021
  • Revised:December 02,2021
  • Adopted:December 06,2021
  • Online:
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