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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 6 — Feb. 20, 2006
  • pp: 1244–1248

Influence of the interaction between metal particles on optical properties of Ag–Si3N4 composite films. I. Experiment

Ding Rong Ou, Jing Zhu, Jia Hao Zhao, Ruo Jian Zhu, and Jia Wang  »View Author Affiliations

Applied Optics, Vol. 45, Issue 6, pp. 1244-1248 (2006)

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Ag– Si 3 N 4 composite films with metal fractions of 20% and 33% were prepared by magnetron sputtering. The Ag particles inside the composite films were less than 5 nm in radius. The optical absorption and near-field enhancement properties of the composite films were measured. On the plots of optical absorption, the extra absorption was observed as well as the surface plasmon resonance absorption. The intensity of the extra absorption depended on the particle size and metal fraction. Moreover, the composite films with higher extra absorption had better near-field enhancement properties. These phenomena were possibly related with the interaction between Ag particles in composite films.

© 2006 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(290.5850) Scattering : Scattering, particles
(300.1030) Spectroscopy : Absorption
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Optics at Surfaces

Original Manuscript: June 1, 2005
Revised Manuscript: October 11, 2005
Manuscript Accepted: October 11, 2005

Ding Rong Ou, Jing Zhu, Jia Hao Zhao, Ruo Jian Zhu, and Jia Wang, "Influence of the interaction between metal particles on optical properties of Ag-Si3N4 composite films. I. Experiment," Appl. Opt. 45, 1244-1248 (2006)

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