Improved surface plasmonic wave propagation of a prism coupler through optimal grating structure design

H. Soh, J. Yoo

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In a prism coupler, a surface plasmonic wave excitation mechanism, the propagating efficiency can be enhanced by employing the grating structure on the thin metal film portion. This study suggests a systematic design approach for the grating structure design using numerical optimization techniques such as the parameter and topology optimization method. The wave propagation model was solved by the finite element analysis, and the design process has been proceeded by the gradient based optimal design method. It is found that the plasmonic wave propagation efficiency is improved by adopting the irregular grating structure obtained from the suggested process.

Original languageEnglish
Pages (from-to)629-640
Number of pages12
JournalJournal of Electromagnetic Waves and Applications
Volume25
Issue number5-6
DOIs
Publication statusPublished - 2011 Feb 1

Fingerprint

Prisms
Surface waves
Wave propagation
couplers
surface waves
prisms
wave propagation
gratings
Shape optimization
optimization
wave excitation
Metals
metal films
Finite element method
topology
gradients

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

Cite this

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Improved surface plasmonic wave propagation of a prism coupler through optimal grating structure design. / Soh, H.; Yoo, J.

In: Journal of Electromagnetic Waves and Applications, Vol. 25, No. 5-6, 01.02.2011, p. 629-640.

Research output: Contribution to journalArticle

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