Fabrication and characterization of plasmonic nanolens for applications in biophotonics

F. De Angelis, Gobind Das, C. Liberale, F. Mecarini, M. Matteucci, E. Di Fabrizio

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This paper reports on the fabrication and characterization of a novel device for surface enhanced Raman scattering, fabricated using focused ion beam milling and electron beam induced deposition. The device exploits a photonic crystal cavity as an optical source to couple the incident laser with a metallic tapered nanolenses. The collected Raman measurements show that exploiting such approach is possible to overcome the difficulties related to scattering and diffraction phenomena occurring when visible laser illuminates nano-structures. A clear Raman scattering enhancement has been demonstrated for label-free detection of molecule in sub-wavelength regime.

Original languageBritish English
Pages (from-to)1286-1288
Number of pages3
JournalMicroelectronic Engineering
Volume85
Issue number5-6
DOIs
StatePublished - May 2008

Keywords

  • Photonic crystal
  • Plasmonic
  • Raman
  • SERS
  • Waveguide

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