Invisibility cloaking in a diffusive light scattering medium
Invisibility cloaking in a diffusive light scattering medium
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DOI：
10.1126/science.1254524
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发表时间：
2014-07-25
期刊：
影响因子：
56.9
通讯作者：
Wegener, Martin
中科院分区：
文献类型：
--
作者：
Schittny, Robert;Kadic, Muamer;Wegener, Martin
根据麦克斯韦方程组，在真空、空气和其他支持弹道光传播的环境中，宏观、三维、宽带、无源、适用于所有方向和偏振的光的隐形斗篷不符合物理定律。根据菲克的扩散方程，我们表明周围环境的情况不同，导致多重光散射。我们制作了圆柱形和球形的隐形斗篷制成的薄壳的聚二甲基硅氧烷掺杂三聚氰胺树脂微粒。这些外壳围绕着一个漫反射的中空核心，其中可以隐藏任意物体。我们发现良好的隐身性能在整个可见光谱范围内的水基漫射环境，并为所有照明条件和入射光偏振。
In vacuum, air, and other surroundings that support ballistic light propagation according to Maxwell's equations, invisibility cloaks that are macroscopic, three-dimensional, broadband, passive, and that work for all directions and polarizations of light are not consistent with the laws of physics. We show that the situation is different for surroundings leading to multiple light scattering, according to Fick's diffusion equation. We have fabricated cylindrical and spherical invisibility cloaks made of thin shells of polydimethylsiloxane doped with melamine-resin microparticles. The shells surround a diffusively reflecting hollow core, in which arbitrary objects can be hidden. We find good cloaking performance in a water-based diffusive surrounding throughout the entire visible spectrum and for all illumination conditions and incident polarizations of light.