The invention belongs to the technical field of light sail design and control, and particularly relates to a diffraction light sail, a diffraction light sail control device and a diffraction light sail control method. The diffraction light sail comprises a substrate layer and a sub-wavelength structure layer, the sub-wavelength structure layer is located on the substrate layer, a plurality of sub-wavelength units are distributed on the sub-wavelength structure layer, and the sub-wavelength units are sequentially arranged in the radial direction of the sub-wavelength structure layer. The phase distribution of the sub-wavelength units distributed in the radial direction of the sub-wavelength structural layer is topological phase distribution of radial stepped transformation of the sub-wavelength structural layer. By means of the diffraction light sail of the structure, the maximum light torque borne by the diffraction light sail is about 1000 times that of a traditional light sail, and the value is in direct proportion to the radius of the diffraction light sail.
本申请属于光帆设计及控制技术领域,具体涉及一种衍射光帆、衍射光帆控制装置、衍射光帆控制方法。本申请公开的衍射光帆包括:基底层和亚波长结构层,亚波长结构层位于基底层之上,亚波长结构层分布有若干个亚波长单元,若干个亚波长单元沿着亚波长结构层的径向依次排列,沿着亚波长结构层的径向分布的亚波长单元的相位分布是沿着亚波长结构层的径向分阶变换的拓扑相位分布。这种结构的衍射光帆可以实现衍射光帆所受最大光转矩约为传统的1000倍,且该数值与衍射光帆半径成正比。
Diffraction light sail, diffraction light sail control device and diffraction light sail control method
衍射光帆、衍射光帆控制装置及衍射光帆控制方法
03.05.2024
Patent
Elektronische Ressource
Chinesisch
Light sail, light sail regulation and control method and light sail construction method
Europäisches Patentamt | 2025
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