Influences of light coupling techniques to the excitation of surface plasmon polaritons

Wan Maisarah Mukhtar, Sahbudin Shaari, P. Susthitha Menon N V Visvanathan

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The prism coupling with Krestchmann configuration is a well established technique in studying the SPR phenomenon. We report the possibility of planar coupling as an alternative technique of light coupling for the excitation of surface plasmon polaritons (SPP). A shallow peak of the SPR curve with minimum reflectivity of 0.72 at 42° was observed using planar coupling technique. By employing the prism coupling technique, the depth of resonance increased about 68% with minimum reflectivity of 0.04. The experimental results of the reflectivity curves showed excellent agreement with WINSPALL simulation results. It was clearly observed that the resonant angles were shifted from 42° to 51° when the prism was brought into contact to the bare surface of the glass slide. This experiment proved that total internal reflection (TIR) was not a compulsory requirement for the excitation of SPP. We also reveal the possibility to produce SPR phenomenon using different refractive indices of coupled glasses in prism coupling technique.

Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalAdvanced Science Letters
Volume19
Issue number1
DOIs
Publication statusPublished - Jan 2013

Fingerprint

Surface Plasmon Polariton
Prisms
reflectivity
Glass
Excitation
Prism
contact
Light
Refractometry
simulation
experiment
Reflectivity
glass
refractive index
Total Internal Reflection
Refractive index
Curve
Refractive Index
Influence
Contact

Keywords

  • Minimum reflectivity
  • Planar coupling
  • Prism coupling
  • SPP TIR
  • SPR

ASJC Scopus subject areas

  • Education
  • Health(social science)
  • Mathematics(all)
  • Energy(all)
  • Computer Science(all)
  • Environmental Science(all)
  • Engineering(all)

Cite this

Influences of light coupling techniques to the excitation of surface plasmon polaritons. / Mukhtar, Wan Maisarah; Shaari, Sahbudin; N V Visvanathan, P. Susthitha Menon.

In: Advanced Science Letters, Vol. 19, No. 1, 01.2013, p. 66-69.

Research output: Contribution to journalArticle

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