We investigate the impact of the dipole-active modes formed via the mode-mixing of the dipole mode with higher-order surface plasmon modes of a nanoegg on the radiative decay rate and quantum yield of an excited molecule near the nanoegg. The Purcell factor, rate of power dissipation by the emitter, antenna efficiency of the nanoegg, as well as quantum yield enhancement of the emitter, were studied using the quasistatic approximation and the semiclassical theory of radiation, following the Gersten-Nitzan and Ford-Weber approaches. Compared to the concentric nanoshell, we show that the dielectric core-metallic shell nanoegg is a more efficient plasmonic nanoantenna for radiative decay rate enhancement of single emitters. The quantum yield of the emitter was found to be more enhanced near the nanoshell, while its emission rate was found to be more enhanced near the nanoegg.

中文翻译：

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纳米蛋附近单个分子的等离子体量子产率增强

我们研究了通过偶极子模式与纳米蛋的高阶表面等离子体模式的模式混合形成的偶极活性模式对纳米蛋附近受激分子的辐射衰减率和量子产率的影响。根据 Gersten-Nitzan 和 Ford-Weber 的理论，使用准静态近似和辐射的半经典理论研究了 Purcell 因子、发射器的功率耗散率、纳米蛋的天线效率以及发射器的量子产率增强方法。与同心纳米壳相比，我们表明介电核 - 金属壳纳米蛋是一种更有效的等离子体纳米天线，可用于增强单个发射器的辐射衰减率。发现发射体的量子产率在纳米壳附近更加增强，