金属薄膜中两种新的表面极化激元激发到纳米孔中
Two new type surface polaritons excited into nanoholes in metal films
摘要：
首先，我们认为，光滑的金属-空气界面应被视为一个独特的介电介质，皮肤的金属。这种金属皮肤的存在导致的理论解释的实验数据的激励电磁表面形状共振在层状金属光栅的光在可见光到近红外范围。已经在金属化光栅上的反射模式中观察到表面极化激元，其中电场高度局部化在凹槽内（比入射光的强度大大约300-1000倍）。在这里，我们提出了量子化的麦克斯韦方程组的电磁场在各向同性均匀介质中，使我们能够解决这些金属薄膜的吸收异常属性。结果表明存在自旋为1、有效质量为$m= 2.5\cdot 10^{-5} m_e$的轻玻色子粒子。我们还发现了两种新型的表面极化激元进入金属薄膜中的纳米孔。
英文摘要：
First, we argue that the smooth metal-air interface should be regarded as a distinct dielectric medium, the skin of the metal. The existence of this metal skin leads to theoretical explanation of experimental data on the excitation of electromagnetic surface shape resonances in lamellar metallic gratings by light in the visible to near-infrared range. Surface polaritons have been observed in reflection modes on metallized gratings where the electric field is highly localized inside the grooves (around 300-1000 times larger than intensity of incoming optical light). Here we present quantized Maxwell's equations for electromagnetic field in an isotropic homogeneous medium, allowing us to solve the absorption anomaly property of these metal films. The results imply the existence of light boson particles with spin one and effective mass $m= 2.5\cdot 10^{-5} m_e$. We also show the presence of two new type surface polaritons into nanoholes in metal films.
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