Study the enhancement of near electro-magnetic field via plasmonic effects using finite-difference time-domain method and near-field scanning optical microscopy

C. H. Huang*, C. Y. Lin, S. J. Chen

*Corresponding author for this work

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

Abstract

In this study, we use the finite-difference time-domain (FDTD) method, the attenuated-total-reflection (ATR) fluorescent and the near field scanning optical microscopy (NSOM) to investigate into the enhancement of near electro-magnetic field via plasmonic effects. In order to enhance the near electro-magnetic (EM) field on the sensing surface, a metal particle layer is added under the Kretschmann configuration of the conventional surface plasmon resonance (SPR) sensor based on the attenuated-total-reflection method. The affiliation by the simulation and experimental results can help us to understand the mechanisms of surface plasmons and particle plasmons on the sensor surface, and the effects of the EM field enhancement are classified as the surface plasmon effect, particle plasmon effect, interparticle coupling effect, and gap mode effect. With the helps of the both techniques, we can understand more about the plasmonic effects in order to deign a novel ultrahigh-resolution plasmonic biosensor.

Original languageEnglish
Title of host publicationPlasmonics
Subtitle of host publicationMetallic Nanostructures and their Optical Properties IV
DOIs
StatePublished - 30 Nov 2006
EventPlasmonics: Metallic Nanostructures and their Optical Properties IV - San Diego, CA, United States
Duration: 13 Aug 200616 Aug 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6323
ISSN (Print)0277-786X

Conference

ConferencePlasmonics: Metallic Nanostructures and their Optical Properties IV
CountryUnited States
CitySan Diego, CA
Period13/08/0616/08/06

Keywords

  • Finite-difference time-domain
  • Near-field scanning optical microscope
  • Particle plasmons
  • Plasmonic biosensing
  • Surface plasmons

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  • Cite this

    Huang, C. H., Lin, C. Y., & Chen, S. J. (2006). Study the enhancement of near electro-magnetic field via plasmonic effects using finite-difference time-domain method and near-field scanning optical microscopy. In Plasmonics: Metallic Nanostructures and their Optical Properties IV [632310] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6323). https://doi.org/10.1117/12.682119