Instituto de Estructura de la Materia (IEM-CSIC), Consejo Superior de Investigaciones Científicas, Serrano 121, 28006 Madrid, Spain.
ACS Nano. 2012 Oct 23;6(10):8989-96. doi: 10.1021/nn303059s. Epub 2012 Sep 18.
We propose two different configurations for which the Fano-like interference of longitudinal plasmon resonances occurring at individual metallic nanoparticles can be easily employed in refractive index sensing: a colloidal suspension of nanospheroids (nanorice) and a single nanowire with rectangular cross section (nanobelt) on top of a dielectric substrate. We numerically study the performance of the two in terms of their figures of merit, which are calculated under realistic conditions. For the case of nanorice, we explicitly incorporate the effect of size dispersity into the simulations. Our obtained results show that the application of the proposed configurations seems to be not only feasible but also very promising.
我们提出了两种不同的配置，其中单个金属纳米粒子中的纵向等离子体共振的类夫琅禾费干涉可以很容易地用于折射率传感：胶体悬浮的纳米球（纳米稻穗）和在介电基底上的具有矩形横截面的单个纳米线（纳米带）。我们根据实际条件下计算的优值来数值研究这两种情况的性能。对于纳米稻穗的情况，我们明确地将尺寸分散性的影响纳入到模拟中。我们得到的结果表明，所提出的配置的应用不仅是可行的，而且非常有前途。
