Optical rectification effect due to surface plasmon polaritons at normal incidence in a nondiffraction regime.
Optical rectification effect due to surface plasmon polaritons at normal incidence in a nondiffraction regime.
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DOI：
10.1364/ol.37.002793
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发表时间：
2012-07
期刊：
影响因子：
3.6
通讯作者：
H. Kurosawa;T. Ishihara;N. Ikeda;D. Tsuya;Masayuki Ochiai;Y. Sugimoto
中科院分区：
文献类型：
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作者：
H. Kurosawa;T. Ishihara;N. Ikeda;D. Tsuya;Masayuki Ochiai;Y. Sugimoto
我们进行了实验和数值研究的光生电压在法向入射的nondiffraction制度，这是不预测发生的简单的动量守恒模型。我们准备了两个样品：一个具有空间反转对称性，另一个没有这个功能。在法向入射的nondiffraction制度，我们只观察到一个有限的信号的非对称结构。我们发现，表面等离子体激元（SPPs）被激发的信号，并归因于电压的起源。我们还利用麦克斯韦应力张量计算了光的辐射力，发现由于表面等离子体的非对称激发，在结构中产生的主要是光的压力，而不是剪切力。
We carried out an experimental and numerical investigation of photoinduced voltage at normal incidence in the nondiffraction regime, which was not predicted to occur by the simple momentum conservation model. We prepared two samples: one having space inversion symmetry and the other without this feature. At normal incidence in the nondiffraction regime, we observed a finite signal only for the asymmetric structure. We found that surface plasmon polaritons (SPPs) are excited by the signal and are attributed to the origin of the voltage. We also evaluated the radiation force of light by using the Maxwell stress tensor and found that pressure of light and not shear force is mainly induced in the structure due to the asymmetric excitation of SPPs.