Direct Evidence of High Spatial Localization of Hot Spots in Surface‐Enhanced Raman Scattering

Abstract

Hot and cold: The high degree of localization in SERS hot spots is demonstrated directly by a selective deposition of Raman analytes inside and outside the field-enhanced regions in a plasmonic cavity (see picture). The localization is demonstrated by measurements of both the absolute SERS intensities and the kinetics for photoinduced degradation at different positions. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by 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.