Near-field studies of surface plasmon generation: Optical and terahertz studies

H. W. Kihm, K. G. Lee, M. A. Seo, K. J. Ahn, A. J L Adam, J. H. Kang, Q Han Park, P. C M Planken, D. S. Kim

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

Abstract

We study the dielectric constant dependent diffraction phenomena of single slit apertures, both theoretically and experimentally. We experimentally simulate perfect metal and real metal cases by investigating subwavelength diffraction by a single slit, both in nano-optical and in terahertz regimes, keeping the slit-width/wavelength ratio approximately the same for both of frequency regimes. The wave-front in optical regime separates itself into forward propagating beam and surface-bound 90-degree diffracted wave, i.e., surface plasmon polaritons; while the separation of modes is not observed in terahertz regime.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7032
DOIs
Publication statusPublished - 2008 Nov 21
EventPlasmonics: Metallic Nanostructures and Their Optical Properties VI - San Diego, CA, United States
Duration: 2008 Aug 102008 Aug 14

Other

OtherPlasmonics: Metallic Nanostructures and Their Optical Properties VI
CountryUnited States
CitySan Diego, CA
Period08/8/1008/8/14

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Keywords

  • Near-field
  • Surface plasmon
  • THz spectroscopy

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Kihm, H. W., Lee, K. G., Seo, M. A., Ahn, K. J., Adam, A. J. L., Kang, J. H., Park, Q. H., Planken, P. C. M., & Kim, D. S. (2008). Near-field studies of surface plasmon generation: Optical and terahertz studies. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7032). [70321P] https://doi.org/10.1117/12.794362