Asymmetric transmission and optical rotation of a quasi-3D asymmetric metallic structure.
Asymmetric transmission and optical rotation of a quasi-3D asymmetric metallic structure.
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DOI：
10.1364/ol.39.006426
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发表时间：
2014-11
期刊：
影响因子：
3.6
通讯作者：
Shan Wu;Su Xu;Yi Zhang;Yanning Wu;Jian-Juan Jiang;Qian-jin Wang;Xue-Jin Zhang;Yongyuan Zhu
中科院分区：
文献类型：
--
作者：
Shan Wu;Su Xu;Yi Zhang;Yanning Wu;Jian-Juan Jiang;Qian-jin Wang;Xue-Jin Zhang;Yongyuan Zhu
具有非对称光学传输特性的三维非对称等离子体结构已被广泛研究。然而，由于制造技术的原因，这些结构的应用受到了限制。本文采用溅射和聚焦离子束球磨的方法制备了由金属棒状颗粒层和金属L空穴层构成的准三维非对称结构。实验上证实了宽带(1000-1600 nm)的非对称传输和旋光性。数值计算表明，腔与粒子等离子体共振之间的耦合对这一效应有一定的贡献。
Three-dimensional (3D) asymmetric plasmonic structures possessing asymmetric optical transmission properties have been widely studied. However, these structures have limitations for application due to fabrication techniques. Here, a quasi-3D asymmetric structure built up by a metallic rod-shaped particles layer and a metallic L-shaped holes layer was fabricated by the sputtering and the focused ion beam (FIB) milling. A broadband (1000-1600 nm) asymmetric transmission and optical rotation have been demonstrated experimentally. Numerical calculations show that the coupling between the cavity and particle plasmonic resonances contributes to this effect.