Optical anisotropies of single-meander plasmonic metasurfaces analyzed by Mueller matrix spectroscopy
Optical anisotropies of single-meander plasmonic metasurfaces analyzed by Mueller matrix spectroscopy
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DOI：
10.1103/physrevb.89.195434
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发表时间：
2014-05-21
影响因子：
3.7
通讯作者：
Schweizer, Heinz
中科院分区：
文献类型：
--
作者：
Berrier, Audrey;Gompf, Bruno;Schweizer, Heinz
超材料和超表面迷人的光学性质本质上依赖于波矢(K)，空间色散效应引起复杂的光学响应。在这里，米勒矩阵椭圆偏振光谱，同时提供了可见光的幅度和相位信息，被用来在大的频率和k空间范围内表征等离子体激元弯曲，并将极化效应分配给准表面的微观等离子体激元激发。这导致了对等离子体流道光学性质的基本物理洞察：闭合薄膜共振耦合的效应被用于大偏振旋转和高透射率，并且在一个紧凑的设计中创建了多种光学功能，这是任何天然晶体都无法获得的。
The fascinating optical properties of metamaterials and metasurfaces are intrinsically wave-vector (k) dependent and spatial dispersion effects induce a complex optical response. Here, Mueller matrix spectroscopic ellipsometry, providing both amplitude and phase information in the visible, is used in a large frequency and k-space range to characterize a plasmonic meander and assign the polarization effects to the microscopic plasmonic excitations of a metasurface. This leads to a fundamental physical insight into the optical properties of the plasmonic meanders: the effect of closed-film resonant coupling is used for large polarization rotation and high transmission, and multiple optical functions are created within one compact design, which cannot be obtained by any natural crystal.