Ultrafine and Smooth Full Metal Nanostructures for Plasmonics

Full metal various nanostructures with extremely smooth surface, small feature size and high aspect ratio can be fabricated by a template stripping method with EBL-patterned PMMA layer as a template. It is further demonstrated that our method is crucial to obtain clear and abundant plasmonic modes in nanocavities with metal reflectors. 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.