Manifestation of Planar and Bulk Chirality Mixture in Plasmonic A-Shaped Nanostructures Caused by Symmetry Breaking Defects
Manifestation of Planar and Bulk Chirality Mixture in Plasmonic A-Shaped Nanostructures Caused by Symmetry Breaking Defects
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DOI：
10.1021/acsphotonics.7b00666
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发表时间：
2017-10-01
期刊：
影响因子：
7
通讯作者：
Drezet, Aurelien
中科院分区：
文献类型：
--
作者：
Pham, Aline;Jiang, Quanbo;Drezet, Aurelien
我们报告的等离子体兰姆达形纳米结构阵列对称性破缺缺陷所产生的平面和体手征效应的共存。双（2D）和三维（3D）手征效应的表现形式揭示了通过偏振层析成像和实验琼斯矩阵的对称性考虑证实。值得注意的是，调查的反对称和对称部分的琼斯矩阵指出的贡献的2D和3D手性的偏振转换诱导的系统，其本征偏振证明的共存的平面和体手性。此外，我们介绍了广义的微观模型的库恩，产生的物理图片的起源所观察到的平面手性，圆双折射，和二色性，理论上禁止在对称？形状的纳米结构。
We report on the coexistence of planar and bulk chiral effects in plasmonic Lambda-shaped nanostructure arrays arising from symmetry breaking defects. The manifestation of bi- (2D) and three-dimensional (3D) chiral effects are revealed by means of polarization tomography and confirmed by symmetry considerations of the experimental Jones matrix. Notably, investigating the antisymmetric and symmetric parts of the Jones matrix points out the contribution of 2D and 3D chirality in the polarization conversion induced by the system whose eigenpolarizations attest to the coexistence of planar and bulk chirality. Furthermore, we introduce a generalization of the microscopic model of Kuhn, yielding to a physical picture of the origins of the observed planar chirality, circular birefringence, and dichroism, theoretically prohibited in symmetric ?-shaped nanostructures.