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首页> 外文期刊>Optics Letters >Optical rectification effect due to surface plasmon polaritons at normal incidence in a nondiffraction regime
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Optical rectification effect due to surface plasmon polaritons at normal incidence in a nondiffraction regime

机译：非衍射条件下表面等离子体极化激元在正常入射下的光学整流效应

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摘要

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.
机译：我们对非衍射状态下法向入射下的光致电压进行了实验和数值研究，这是简单动量守恒模型预测不会发生的。我们准备了两个样本：一个具有空间反演对称性，另一个没有这个特征。在非衍射状态的正常入射下，我们仅观察到不对称结构的有限信号。我们发现表面等离子体极化激元（SPP）被信号激发，并归因于电压的来源。我们还利用麦克斯韦应力张量评估了光的辐射力，发现由于表面离激离激元的不对称激发，结构中主要感应光的压力而不是剪切力。

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