, Volume 102, Issue 3, pp 521-525
Date: 12 Jan 2011

Optical properties of Ag nanoparticle embedded silicate glass prepared by field-assisted diffusion

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Abstract

Ag nanoparticle embedded silicate glass was prepared by field-assisted diffusion, combined with post-annealing process. Surface plasmon resonance (SPR) bands were observed in the optical absorption measurement. The properties of optical absorption were strongly affected by the process parameters. With increasing electric field intensity and diffusion time, the SPR peak position and the full width at half maximum (FWHM) of the plasmon band were almost invariable. With increasing post-annealing time, the SPR peak was blue-shifted and the FWHM of SPR band decreased. The experimental results could be well simulated using modified Mie scattering theory considering the spill-out effects and the limitation of the mean free path.