论文标题
单分子对金粒子的局部覆盖
Partial cloaking of a gold particle by a single molecule
论文作者
论文摘要
材料颗粒灭绝的光源于吸收或散射造成的损失。灭绝横截面通常被视为添加剂量，从而导致控制光的宏观衰减的指数定律。在这项工作中，我们证明了大金纳米颗粒的灭绝横截面可以大大减少，即，如果将单个分子放置在其近场中，则粒子变得更透明。这种部分盖的作用是由于分子与纳米颗粒之间的连贯等离子体相互作用而产生的，因此每个等离子相互作用都充当纳米 - 安宁纳，以修改另一个人的辐射特性。
Extinction of light by material particles stems from losses incurred by absorption or scattering. The extinction cross section is usually treated as an additive quantity, leading to the exponential laws that govern the macroscopic attenuation of light. In this work, we demonstrate that the extinction cross section of a large gold nanoparticle can be substantially reduced, i.e., the particle becomes more transparent, if a single molecule is placed in its near field. This partial cloaking effect results from a coherent plasmonic interaction between the molecule and the nanoparticle, whereby each of them acts as a nano-antenna to modify the radiative properties of the other.
