Localized surface-plasmon polaritons in disordered nanostructured metal surfaces:: Shape versus Anderson-localized resonances -: art. no. 113410

被引：21

作者：

Sánchez-Gil, JA ^{[1
]}

机构：

[1] CSIC, Inst Estructura Mat, E-28006 Madrid, Spain

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.68.113410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electromagnetic wave scattering from disordered nanostructured metal surfaces supporting surface-plasmon polaritons (SPP) is studied by means of fully retarded scattering formulations. We investigate the two physical mechanisms which may underlie the excitation of localized SPP: Anderson localization and shape resonances. The former mechanism is discarded since plane-wave excited, localized SPP are observed in the absence of proper Anderson localization of SPP. In contrast, a detailed analysis of the near field for various ensembles of surface realizations permits us to identify SPP shape resonances typically occurring at sub-100-nm grooves or ridges, the latter being significantly stronger.

引用

页数：4

共 21 条

[1] NEAR-FIELD MICROSCOPY OF SURFACE-PLASMON POLARITONS - LOCALIZATION AND INTERNAL INTERFACE IMAGING [J].