In the realm of nanotechnology, the integration of quantum emitters with plasmonic nanostructures has emerged as an innovative pathway for applications in quantum technologies, sensing, and imaging. This research paper provides a comprehensive exploration of the photoluminescence enhancement induced by the interaction between quantum emitters and tailored nanostructure configurations. Four canonical nanoantennas (spheres, rods, disks, and crescents) are systematically investigated theoretically in three distinct configurations (single, gap, and nanoparticle-on-mirror nanoantennas), as a representative selection of the most fundamental and commonly studied structures and arrangements. A detailed analysis reveals that the rod gap nanoantenna configuration achieves the largest photoluminescence enhancement factor, of up to three orders of magnitude. The study presented here provides insights for the strategic design of plasmonic nanoantennas in the visible and near-IR spectral range, offering a roadmap for these structures to meet specific requirements in plasmon-enhanced fluorescence. Key properties such as the excitation rate, the quantum yield, the enhanced emitted power, or the directionality of the emission are thoroughly reviewed. The results of this overview contribute not only to the fundamental understanding of plasmon-enhanced emission of quantum emitters but also set the basis for the development of advanced nanophotonic devices with enhanced functionalities.

中文翻译：

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基于金属纳米天线的等离激元增强光致发光概述


在纳米技术领域，量子发射器与等离子体纳米结构的集成已成为量子技术、传感和成像应用的创新途径。本研究论文全面探讨了量子发射器和定制纳米结构构型之间的相互作用引起的光致发光增强。四种规范纳米天线（球体、棒状、圆盘和新月形）以三种不同的配置（单、间隙和镜面上纳米粒子纳米天线）在理论上进行了系统研究，作为最基本和最常研究的结构和排列的代表性选择。详细分析表明，杆隙纳米天线配置实现了最大的光致发光增强因子，高达三个数量级。这里介绍的研究为可见光和近红外光谱范围内等离激元纳米天线的战略设计提供了见解，为这些结构提供了满足等离激元增强荧光特定要求的路线图。本文对激发速率、量子产率、增强的发射功率或发射的方向性等关键特性进行了全面审查。本综述的结果不仅有助于从根本上理解量子发射器的等离激元增强发射，而且为开发具有增强功能的先进纳米光子器件奠定了基础。