Simulation study of extraordinary optical transmission induced by sub-wavelength nanopore arrays towards label-free biochemical analysis

Wenhui Wang, Yanke Peng, Tianhong Cui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Label-free optical biochemical analysis approach is an advantageous alternative to traditional label-based techniques and has a wide range of applications. Extraordinary optical transmission (EDT), another form of surface plasmonic resonance induced by sub-wavelength nanopore arrays, has recently drawn increasing attention, due to its potential in miniaturizing biochemical assay instrument. To fabricate the nanopore arrays that function as the core device for biochemical analysis, the parameters are to be determined in an optimized manner. This paper thus reports the simulation studies on two typical structures of nanopore arrays, namely, (A) a perforated metallic layer on top of a substrate, and (B) a perforated metallic layer coupled with isolated metallic disks, which have been proposed in literature. Using FDTD Solutions software, and taking into account the major factors associated with the transmitted light spectrum and intensity, this study confirms the importance of using coating on the nanopore arrays with a refractive index matching the substrate of nanopores. The simulation results also provide a quantitative comparison in performance of the structures with different parameters, in terms of spectrum shift and intensity. These data can be used to guide the optimal design of a nanopores-based optical biochemical analyzer.

Original languageEnglish (US)
Title of host publication2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013 - Conference Proceedings
PublisherIEEE Computer Society
Pages140-145
Number of pages6
ISBN (Print)9781479912131
DOIs
StatePublished - Jan 1 2013
Event2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013 - Suzhou, China
Duration: Aug 26 2013Aug 30 2013

Publication series

Name2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013 - Conference Proceedings

Other

Other2013 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2013
CountryChina
CitySuzhou
Period8/26/138/30/13

Keywords

  • extraordinary optical transmission
  • label-free biochemical analysis
  • nanohole
  • sub-wavelength nanopore arrays
  • sufrace plasmonic resonance

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