Hollow metallic pyramid plasmonic structures fabricated by direct laser writing and electron beam evaporation

Jiajia Mu, Jiafang Li, Wuxia Li*, Qiang Luo, Changzhi Gu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Here we report a method that enables the fabrication of hollow metallic pyramid plasmonic structures on free-standing copper grids, which were fabricated by direct laser writing lithography followed by noble metal deposition. Gratings on the faces of these pyramids can translate incident light into plasmons that propagate toward the apex of the noble metal coated pyramids. Surface Enhanced Raman Scattering (SERS) measurements confirm that these hollow metallic pyramid structures have superior properties to the planar metal surface and the degree of enhancement can be tuned by the size and geometry of the fabricated structures, which potentially could be used for better understanding of surface enhanced plasmonics on free-standing three dimensional structures as well as find application in the research field of SERS.

Original languageEnglish
Pages (from-to)307-310
Number of pages4
JournalMicroelectronic Engineering
Volume110
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Direct laser writing
  • Hollow metallic pyramid
  • Plasmonic structure
  • SERS

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