论文标题
在超材料丝接界面控制表面等离子体的表面色素分散和purcell效应
Control of the surface plasmon dispersion and Purcell effect at the metamaterial-dielectric interface
论文作者
论文摘要
研究了超材料作为减轻金属吸收对金属射丝结构purcell效应的负面影响的一种方法。在长波长极限中，分层的金属 - 二电结构被认为是各向异性介质。研究了一种结构与不同的介电材料之间边界的表面等离子体的分散，以及在状态的局部密度中的位置，以进行各种材料组合和周期性结构的填充因子的各种组合。与常规等离子结构相比，purcell因子的计算频率依赖性表明峰值增加。
The use of metamaterial as a way to mitigate the negative effects of absorption in metals on the Purcell effect in metal-dielectric structures is investigated. A layered metal-dielectric structure is considered as an anisotropic medium in the long-wavelength limit. The dispersion of the surface plasmon appearing at the boundary between such a structure and a different dielectric material, as well as the position of the peak in the local density of states are studied for various combinations of materials and filling factors of the periodic structure. The calculated frequency dependence of the Purcell factor demonstrates an increase in peak value compared to the conventional plasmonic structure.
