Inverse design of arbitrary optical helicity patterns
Inverse design of arbitrary optical helicity patterns
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DOI：
10.1103/physrevresearch.5.033076
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发表时间：
2022-11
影响因子：
4.2
通讯作者：
Romuald Kilianski;R. Bennett
中科院分区：
文献类型：
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作者：
Romuald Kilianski;R. Bennett
多个平面波的叠加可以产生螺旋度晶格，其中光学螺旋度在空间中有规律地变化。在这里，我们提出了一种逆设计方法，用于构建任意螺旋结构的基础上放置一个数字对象的介电夹杂物在三维空间中。我们应用该方法设计的结构，再现二维晶格嵌入在一个三维区域内，只使用一个单一的平面波作为输入。为了证明我们的方法的能力和灵活性，我们超越了常规晶格的范例，并提出了可以创建由不同螺旋度区域组成的任意图像的结构，再次仅使用单个平面波作为输入。
Superposing multiple plane waves can generate helicity lattices in which the optical helicity varies regularly in space. Here we propose an inverse design method for constructing arbitrary helicity structures based on placing a digital object of dielectric inclusions in three-dimensional space. We apply the method to design structures that reproduce two-dimensional lattices embedded within a three-dimensional region using only a single plane wave as an input. In order to demonstrate the power and flexibility of our method, we go beyond the paradigm of a regular lattice and propose structures that can create arbitrary images consisting of regions of varying helicity, again using only a single plane wave as an input.