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Proceedings Paper

Linear and nonlinear optical properties of monodispersed gold clusters in silica glass by sol-gel method
Author(s): Tomokatsu Hayakawa; Yasuhiro Ono; Masayuki Nogami
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Paper Abstract

Recently, we have successfully incorporated gold nanoclusters into silica matrix by a sol-gel technique, where the synthesis of gold clusters was conducted in presence of PVP. In this paper, we report linear and nonlinear optical properties of the polymer-blocked gold clusters in silica matrix. The Au/SiO2 glass were characterized by transverse electron microscopy (TEM), x-ray diffraction (XRD), and Mie-Drude analysis of linear absorption spectra. The hydrophilic polymer, exhibiting the strong metal-polymer interaction which stemmed from the lone pair from the nitrogen with the metal particles, prohibited the flocculation and growth of gold clusters in gel-glass transition. The degenerate four-wave mixing experiment was performed to obtain the nonlinear susceptibility (chi) (3), which was evaluated to be 1.7 X 10-9 esu, in consistent with a theoretical value expected from hot electron contribution.

Paper Details

Date Published: 2 May 2000
PDF: 10 pages
Proc. SPIE 3943, Sol-Gel Optics V, (2 May 2000); doi: 10.1117/12.384327
Show Author Affiliations
Tomokatsu Hayakawa, Nagoya Institute of Technology (Japan)
Yasuhiro Ono, Nagoya Institute of Technology (Japan)
Masayuki Nogami, Nagoya Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 3943:
Sol-Gel Optics V
Bruce S. Dunn; Edward J. A. Pope; Helmut K. Schmidt; Masayuki Yamane, Editor(s)

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