Propagating and Localized Surface Plasmons in Hierarchical Metallic Structures for Surface‐Enhanced Raman Scattering

Abstract

A highly ordered hierarchical periodic structure with large area is fabricated to support surface plasmon (SP) and surface-enhanced Raman scattering (SERS). This novel metallic submicro-nano structure exhibits a complex honeycomb-like geometry, which is confirmed in experiments to support both PSPs and LSPs. Multiple modes of SPs are expected to have co-enhanced Raman scattering, heralding the development of more sophisticated hybrid surface plasmonic nanodevices. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.