标题： 使用位控金属纳米柱增强单个量子发射器在WSe2单层中的辐射性能 显示英文标题

标题： Radiative enhancement of single quantum emitters in WSe2 monolayers using site-controlled metallic nano-pillars

摘要： 等离子纳米结构为控制和增强量子发射器的辐射特性提供了一种有效的方法。 将这些结构与低维材料中的单个缺陷耦合，为研究发射器-等离子体相互作用提供了一个特别有前景的材料平台，因为这些发射器并未嵌入周围介电材料中。 因此，它们可以接近等离子体模式的近场区域，以纳米尺度的距离，可能实现强光-物质相互作用。 然而，这种耦合需要将发射器精确对准结构的等离子体模式，这在位点控制的结构中尤其难以实现。 我们提出了一种技术，在二维二硒化钨（WSe2）中生成与位点控制的等离子纳米柱耦合的量子发射器。 等离子纳米柱在二维材料中产生应变，从而在等离子体模式的高场区域附近生成量子发射器。 纳米柱模式的电场接近于与二维材料平行，因此具有正确的方向以耦合到量子发射器。 发射器与等离子体模式之间的相互作用导致自发发射增强和亮度增加。 这种方法可能为量子通信和光学量子计算应用提供明亮的位点控制的非经典光源。 显示英文摘要

摘要： Plasmonic nano-structures provides an efficient way to control and enhance the radiative properties of quantum emitters. Coupling these structures to single defects in low-dimensional materials provides a particularly promising material platform to study emitter-plasmon interactions because these emitters are not embedded in a surrounding dielectric. They can therefore approach a near-field plasmonic mode to nanoscale distances, potentially enabling strong light-matter interactions. However, this coupling requires precise alignment of the emitters to the plasmonic mode of the structures, which is particularly difficult to achieve in a site-controlled structure. We present a technique to generate quantum emitters in 2D tungsten diselenide (WSe2) coupled to site-controlled plasmonic nano-pillars. The plasmonic nano-pillars induce strain in the two dimensional material which generates quantum emitters near the high-field region of the plasmonic mode. The electric field of the nano-pillar mode lies close to parallel with the two-dimensional material, and is therefore in the correct orientation to couple to quantum emitters. Interactions between the emitter and plasmonic mode result in an enhanced spontaneous emission and increased brightness. This approach may enable bright site-controlled non-classical light sources for applications in quantum communication and optical quantum computing.