Nanocavity-nanoparticle mirror structure for optimization of local field enhancement

Benjamin M. Ross, Luke P. Lee

Research output: Contribution to conferencePaperpeer-review

Abstract

With a systematic computational study, we show that by engineering a plasmonic mirror between a metallic substrate and gold nanoparticles, high local electromag-netic field enhancement can be achieved-reaching two orders of magnitude higher than that computed for metallic particle-particle (dimer) interactions. In addition, our structure allows the cavity-particle gap distance between to be precisely controlled, and is suitable for batch processing. Hence, our design is an excellent candidate for spectroscopic techniques such as surface enhanced Raman spectroscopy (SERS) and plasmonic enhancement of fluorescence.

Original languageEnglish
Pages239-241
Number of pages3
StatePublished - 2008
Event12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 - San Diego, CA, United States
Duration: 12 Oct 200816 Oct 2008

Conference

Conference12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008
Country/TerritoryUnited States
CitySan Diego, CA
Period12/10/0816/10/08

Keywords

  • Finite element
  • Local field enhancement (LFE)
  • Plasmonics
  • SERS

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