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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 12 — Dec. 1, 2006
  • pp: 2518–2521

Photoluminescence from Au nanoparticles embedded in Au:oxide composite films

Hongbo Liao, Weijia Wen, and George K.L. Wong  »View Author Affiliations


JOSA B, Vol. 23, Issue 12, pp. 2518-2521 (2006)
http://dx.doi.org/10.1364/JOSAB.23.002518


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Abstract

Au:oxide composite multilayer films with Au nanoparticles sandwiched by oxide layers (such as Si O 2 , ZnO, and Ti O 2 ) were prepared in a magnetron sputtering system. Their photoluminescence (PL) spectra were investigated by employing a micro-Raman system in which an Argon laser with a wavelength of 514 nm was used as the pumping light. Distinct PL peaks located at a wavelength range between 590 and 680 nm were observed in most of our samples, with Au particle size varying from several to hundreds of nanometers. It was found that the surface plasmon resonance (SPR) in these composites exerted a strong influence on the position of the PL peaks but had little effect on the PL intensity.

© 2006 Optical Society of America

OCIS Codes
(160.4670) Materials : Optical materials
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
(310.1860) Thin films : Deposition and fabrication

ToC Category:
Materials

History
Original Manuscript: May 23, 2006
Revised Manuscript: August 7, 2006
Manuscript Accepted: September 1, 2006

Citation
Hongbo Liao, Weijia Wen, and George K. Wong, "Photoluminescence from Au nanoparticles embedded in Au:oxide composite films," J. Opt. Soc. Am. B 23, 2518-2521 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-12-2518

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