论文标题
在局部激发场上具有受控单量子发射器定位的混合等离激元纳米发射体
Hybrid plasmonic nano-emitters with controlled single quantum emitter positioning on the local excitation field
论文作者
论文摘要
基于量子点发射器（QD）和等离子体纳米ant的杂种等离激元纳米过敏剂，在控制光的控制方面打开了新的视角。但是，在纳米级上的任何活性培养基的精确定位构成了挑战。在这里，我们报告了天线的近场和活性介质的最佳重叠，其空间分布通过等离子体触发的2光子聚合的光合物对含有QD的光敏剂进行控制。考虑了各种几何形状的纳米颗粒。这些杂交纳米发射体的响应被证明对光极化高度敏感。光致发光测量结果证明了不同的光发射状态。这些状态对应于激动人心的局部场和活动介质分布之间对极化敏感的纳米级重叠。单体配方中QD浓度的降低允许将单个量子点捕获在AU粒子附近。后一个对象显示单光子示体中的偏振依赖性切换。
Hybrid plasmonic nanoemitters based on the combination of quantum dot emitters (QD) and plasmonic nanoantennas open up new perspectives in the control of light. However, precise positioning of any active medium at the nanoscale constitutes a challenge. Here, we report on the optimal overlap of antenna's near-field and active medium whose spatial distribution is controlled via a plasmon-triggered 2-photon polymerization of a photosensitive formulation containing QDs. Au nanoparticles of various geometries are considered. The response of these hybrid nano-emitters is shown to be highly sensitive to the light polarization. Different light emission states are evidenced by photoluminescence measurements. These states correspond to polarization-sensitive nanoscale overlap between the exciting local field and the active medium distribution. The decrease of the QD concentration within the monomer formulation allows trapping of a single quantum dot in the vicinity of the Au particle. The latter objects show polarization-dependent switching in the single-photon regime.
