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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 26 — Dec. 24, 2007
  • pp: 18200–18208

Volume integral equation analysis of surface plasmon resonance of nanoparticles

Wei-Bin Ewe, Hong-Son Chu, and Er-Ping Li  »View Author Affiliations

Optics Express, Vol. 15, Issue 26, pp. 18200-18208 (2007)

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The interactions between electromagnetic field and arbitrarily shaped metallic nanoparticles are numerically investigated. The scattering and near field intensity of nanoparticles are characterized by using volume integral equation which is formulated by considering the total electric field, i.e. the sum of incident fields and radiated fields by equivalent electric volume currents, within the scatterers. The resultant volume integral equation is then discretized using divergence-conforming vector basis functions and is subsequently solved numerically. Numerical examples are presented to demonstrate the application of volume integral equation to capture and analyze the surface plasmon resonance of arbitrarily shaped metallic nanoparticles. The effects of illumination angles and background media to the surface plasmon resonance are also investigated. The results show that our proposed method is particularly useful and accurate in characterizing the surface plasmon properties of metallic nanoparticles.

© 2007 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics

ToC Category:
Optics at Surfaces

Original Manuscript: October 17, 2007
Revised Manuscript: December 3, 2007
Manuscript Accepted: December 4, 2007
Published: December 19, 2007

Wei-Bin Ewe, Hong-Son Chu, and Er-Ping Li, "Volume integral equation analysis of surface plasmon resonance of nanoparticles," Opt. Express 15, 18200-18208 (2007)

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