Fabrication and characterization of plasmonic nanolens for applications in biophotonics

F. De Angelis*, Gobind Das, Carlo Liberale, F. Mecarini, M. Matteucci, Enzo Di Fabrizio

*Corresponding author for this work

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 languageEnglish (US)
Pages (from-to)1286-1288
Number of pages3
JournalMicroelectronic Engineering
Volume85
Issue number5-6
DOIs
StatePublished - May 1 2008

Keywords

  • Photonic crystal
  • Plasmonic
  • Raman
  • SERS
  • Waveguide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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