Plasmon drag effect with sharp polarity switching
Plasmon drag effect with sharp polarity switching
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DOI：
10.1088/1367-2630/ab7d7c
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发表时间：
2019-11
影响因子：
3.3
通讯作者：
T. Ronurpraful;D. Keene;N. Noginova
中科院分区：
文献类型：
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作者：
T. Ronurpraful;D. Keene;N. Noginova
从基本观点来看，在等离子体超颖表面中观察到的显著光电流的产生是有趣的，并且有希望用于具有紧凑电检测的基于等离子体的电子器件和等离子体传感器中的应用。我们发现，在强烈调制的等离子体表面的光致电压表现出高度不对称的角度依赖性与周围的等离子体共振条件的极性切换。这些效应初步归因于局域等离子体激元和传播等离子体激元之间的耦合。
The generation of significant photocurrents observed in plasmonic metasurfaces is interesting from a fundamental point of view and promising for applications in plasmon-based electronics and plasmonic sensors with compact electrical detection. We show that photoinduced voltages in strongly modulated plasmonic surfaces demonstrate a highly asymmetric angular dependence with polarity switching around the plasmon resonance conditions. The effects are tentatively attributed to coupling between localized and propagating plasmons.