School of Mathematical and Physical Sciences, University of Technology Sydney , Ultimo, New South Wales 2007, Australia.
Nano Lett. 2017 Apr 12;17(4):2634-2639. doi: 10.1021/acs.nanolett.7b00444. Epub 2017 Mar 23.
Quantum emitters in two-dimensional materials are promising candidates for studies of light-matter interaction and next generation, integrated on-chip quantum nanophotonics. However, the realization of integrated nanophotonic systems requires the coupling of emitters to optical cavities and resonators. In this work, we demonstrate hybrid systems in which quantum emitters in 2D hexagonal boron nitride (hBN) are deterministically coupled to high-quality plasmonic nanocavity arrays. The plasmonic nanoparticle arrays offer a high-quality, low-loss cavity in the same spectral range as the quantum emitters in hBN. The coupled emitters exhibit enhanced emission rates and reduced fluorescence lifetimes, consistent with Purcell enhancement in the weak coupling regime. Our results provide the foundation for a versatile approach for achieving scalable, integrated hybrid systems based on low-loss plasmonic nanoparticle arrays and 2D materials.
二维材料中的量子发射器是研究光与物质相互作用和下一代集成片上量子纳米光子学的有前途的候选者。然而，集成纳米光子学系统的实现需要将发射器与光学腔和共振器耦合。在这项工作中，我们展示了混合系统，其中二维六方氮化硼 (hBN) 中的量子发射器被确定性地耦合到高质量等离子体纳米腔阵列。等离子体纳米粒子阵列在与 hBN 中的量子发射器相同的光谱范围内提供了高质量、低损耗的腔。耦合的发射器表现出增强的发射率和减少的荧光寿命，与弱耦合状态下的普塞尔增强一致。我们的结果为基于低损耗等离子体纳米粒子阵列和二维材料实现可扩展、集成混合系统的通用方法提供了基础。
