Abstract A new approach for generating sub wavelength scale one dimensional chain of magnetic spot ,hole, flattop and bubble profiled segments using tightly focused phase modulated azimuthal and radial variant vector (ARVV) beam is proposed and investigated numerically using vector diffraction theory. Numerical result shows that by using a well optimized single Complex Phase Filter (CPF), one can generated and tune the geometry of the 1D chain of magnetic field distribution from sub wavelength scale hole to spot and then to a chain of flattop profiled and bubble structure segments by properly tuning the radial index of the incident azimuthal- and radial-variant vector beam. Such an approach is simple and usable for simulate condensed matter phenomena.

中文翻译：

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通过紧密聚焦的相位调制方位角和径向可变矢量束创建一维磁场阵列

摘要 提出了一种使用紧聚焦相位调制方位角和径向变化矢量 (ARVV) 光束生成亚波长尺度一维链的磁斑、孔、平顶和气泡剖面链的新方法，并使用矢量衍射理论进行了数值研究。数值结果表明，通过使用优化良好的单复相位滤波器 (CPF)，可以生成和调整从亚波长尺度孔到光斑再到平顶轮廓和气泡结构链的一维磁场分布链的几何形状通过适当调整入射方位角和径向变化矢量光束的径向指数来分段。这种方法简单且可用于模拟凝聚态现象。