Achermann Marc
Opt Express. 2016 Dec 26;24(26):30234-30244. doi: 10.1364/OE.24.030234.
Numerical simulations of light scattering by elongated metal nanoparticles in an asymmetric arrangement show resonant scattering in two near-infrared wavelength ranges associated with different surface plasmon modes. The main scattering directions of the two plasmon modes are in opposite diagonal directions and almost perpendicular to each other. At wavelengths in-between the two plasmon resonances our simulations showed for the first time strong scattering at approximately ± 90°, which is parallel to the incident electric field direction. Since enhanced sideways scattering exists over a significant wavelength range, the proposed nanoparticle assemblies could be beneficial for light harvesting applications such as solar windows.
对不对称排列的细长金属纳米颗粒的光散射进行的数值模拟表明，在与不同表面等离子体模式相关的两个近红外波长范围内存在共振散射。两种等离子体模式的主要散射方向处于相反的对角线方向，且几乎相互垂直。在两个等离子体共振之间的波长处，我们的模拟首次显示在大约±90°处有强烈散射，该方向与入射电场方向平行。由于在相当大的波长范围内存在增强的侧向散射，所提出的纳米颗粒组件可能有利于诸如太阳能窗户等光收集应用。
