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Long-range surface plasmons on duplex metal nanolayers

机译:双相金属纳米纳米上的远程表面等离子体

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Planar structures with two metal nanolayers supporting long-range surface plasmons (LRSPs) are described. We introduce a design where a one-dimensional photonic crystal (1D PC) is used as a support for a planar dielectric film sandwiched between two metal nanolayers. This quasisymmetric design is compared with a symmetric where two metal nanolayers deposited on opposite sides of the planar dielectric film have the same semi-infinite dielectric environment from both sides. Such multilayer structures are useful when electrical power is supplied to the planar film through LRSP-supporting metal nanolayers on opposite sides of the film. This planar film may be, for example, an electro-optical crystal or an (organic) electroluminescent film. A method for designing such LRSP-supporting duplex metal structures based on an impedance approach is presented. Calculations of the optimal thickness for the metal-bounded dielectric film, which provides minima of optical field inside the metal nanolayers, are given for both symmetric and quasisymmetric cases.
机译:描述了具有支撑远程表面等离子体(LRSP)的两个金属纳米层的平面结构。我们介绍一种设计,其中一维光子晶体(1D PC)用作夹在两个金属纳米层之间的平面介电膜的支撑。将该仲二核化设计与对称的对称进行比较,其中沉积在平面介电膜的相对侧上的两个金属纳米层,从两侧具有相同的半无限介电环境。当电力通过LRSP支撑金属纳米层在薄膜的相对侧上提供电力时,这种多层结构是有用的。该平面膜可以是例如电光晶体或(有机)电致发光膜。提出了一种基于阻抗方法设计这种基于阻抗方法的这种LRSP支撑双相金属结构的方法。给出了金属有界介电膜的最佳厚度的计算,其为金属纳米组内提供最小的光学场,对称和Quasismmetric病例给出。

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