Optical tunneling effect of surface plasmon polaritons and localized surface plasmon resonance

Wei Chih Liu, Din Ping Tsai

Research output: Contribution to journalArticle

Abstract

Surface plasmon resonance of periodic narrow-grooved metallic thin films were studied with finite-difference time-domain simulations. Two distinguishable modes, surface plasmon polaritons and localized surface plasmons, are associated with different periods. The surface plasmon polaritons have widely extended near-field distributions and sharp resonance; however, the localized surface plasmon modes are highly concentrated in the grooves, and have broad resonance. Our results demonstrate that the surface plasmon polaritons and localized surface plasmons were coupled with electromagnetic waves to resonantly tunnel through the array of subwavelength holes. This optical tunneling effect exhibited large phase lag and time delay for the surface plasmon polariton. The broadness of localized surface plasmon resonance indicated that it could exist in randomly distributed, narrow-grooved structures as well.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number15
DOIs
Publication statusPublished - 2002 Jan 1

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Surface plasmon resonance
surface plasmon resonance
polaritons
Plasmons
plasmons
time lag
Metallic films
grooves
Electromagnetic waves
tunnels
Time delay
near fields
electromagnetic radiation
Tunnels
Thin films
thin films
simulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Optical tunneling effect of surface plasmon polaritons and localized surface plasmon resonance. / Liu, Wei Chih; Tsai, Din Ping.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 65, No. 15, 01.01.2002, p. 1-6.

Research output: Contribution to journalArticle

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