当前位置: X-MOL 学术J. Opt. Soc. Amer. B › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Interferometric experiments on the transmission matrix of diffusive neutral inclusions
Journal of the Optical Society of America B ( IF 1.9 ) Pub Date : 2021-07-12 , DOI: 10.1364/josab.425847
Andreas Niemeyer , Paul Schroff , Wonjun Choi , Jaecheol Cho , Andreas Naber , Wonshik Choi , Martin Wegener

By using tailored disorder in the regime of diffusive light propagation, core-shell cloaking structures have previously been presented. These structures make the cloak and an arbitrary interior nearly indistinguishable from the diffusive surrounding. This statement holds true for all incident polarizations of light, a broad range of incident directions of light in three dimensions, and a broad range of visible wavelengths. Here, by performing interferometric transmission-matrix experiments, we investigate the statistical wave properties of miniaturized versions of such structures. By using singular-value decomposition, we derive the eigenchannels and eigenvalues to assess the degree of wave correlation among multiply scattered waves. We find small but significant differences in the eigenvalue distributions, suggesting that the degree of wave correlation is lower for the neutral inclusion than for a homogeneously disordered reference sample, which corresponds to the surrounding of the neutral inclusion. Likewise, we find similar differences between optically inspecting the core-shell neutral inclusion and its spatial neighborhood. These differences allow us to reveal the neutral inclusion due to different statistics of the underlying random walks of light.

中文翻译:

漫射中性夹杂物透射矩阵的干涉实验

通过在漫射光传播范围内使用定制的无序,先前已经提出了核壳隐身结构。这些结构使斗篷和任意内部几乎无法与扩散的周围环境区分开来。该陈述适用于所有入射光偏振、光在三个维度上的大范围入射方向以及大范围的可见光波长。在这里,通过进行干涉传输矩阵实验,我们研究了这种结构的小型化版本的统计波特性。通过使用奇异值分解,我们导出了特征通道和特征值来评估多个散射波之间的波相关程度。我们发现特征值分布存在微小但显着的差异,表明中性夹杂物的波相关程度低于均匀无序的参考样品,后者对应于中性夹杂物的周围。同样,我们发现在光学检查核壳中性夹杂物与其空间邻域之间存在类似差异。这些差异使我们能够揭示由于潜在随机光游走的不同统计数据而导致的中性包含。
更新日期:2021-09-01
down
wechat
bug