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arXiv 2005.07351physics.optics
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通过纳米结构之间的远场耦合调谐等离子体场增强和瞬态

Tuning plasmonic field enhancement and transients by far-field coupling between nanostructures

Z. Pápa, J. Kasza, J. Budai, Z. Márton, Gy. Molnár, P. Dombi

摘要:

我们研究了矩形阵列纳米粒子的集体效应如何影响其时间等离子体响应和场增强特性。通过系统地改变含有相同金属纳米棒的阵列的晶格常数,我们实验证明了光栅诱导效应如何影响位置,更重要的是,消光光谱的加宽。我们将这些效应与可实现的场增强和等离子体激元瞬态的持续时间相关联,并制定产生增强的几个周期局部等离子体激元振荡的标准。

英文摘要:

We study how the collective effects of nanoparticles arranged in rectangular arrays influence their temporal plasmon response and field enhancement property. By systematically changing the lattice constant for arrays containing identical metal nanorods, we experimentally demonstrate how grating induced effects affect the position and, more importantly, the broadening of extinction spectra. We correlate these effects with the achievable field enhancement and the temporal duration of plasmon transients and formulate criteria for the generation of enhanced few-cycle localized plasmon oscillations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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