Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid, Spain.
Opt Lett. 2011 Nov 15;36(22):4341-3. doi: 10.1364/OL.36.004341.
The propagation of surface plasmon polaritons in dielectric loaded waveguides with randomly placed scatterers is studied using both numerical simulations and a simplified transfer matrix framework. Despite the importance of losses in this system, we find fingerprints of the localized behavior of one-dimensional disordered systems. Furthermore, losses amplify the impact of the necklace states on the transport properties for systems not much larger than the localization length. The system presented here also offers the possibility to use localization effects for engineering purposes by means of deliberately introduced disorder.
使用数值模拟和简化的传输矩阵框架研究了随机放置散射体的介质负载波导中表面等离激元的传播。尽管在这个系统中损耗很重要，但我们发现了一维无序系统局域化行为的特征。此外，损耗放大了项链态对传输性质的影响，对于尺寸不大于局域化长度的系统尤为明显。本文所提出的系统还为通过故意引入无序来实现工程目的的局域化效应提供了可能。
