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Proceedings Paper

Size and dielectric dependence of off-resonant nonlinearity in Au: dielectric nanocomposite system
Author(s): Guohong Ma; Sing-Hai Tang; Wanxin Sun; Jun He; Hanzhuang Zhang; Zexiang Shen; Shixiong Qian
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Paper Abstract

The third-order nonlinear optical response of Au nanocrystals embedded in BaTiO3 and ZrO2 matrices were investigated by off-resonance femtosecond optical Kerr effect. The nonlinearity of composite films show an enhancement comparing with the pristine matrices films, which is Au particle size and matrices refractive index dependence. A calculation based on Lorenz-Mie scattering theory was performed to explain the experimental results. Additionally, optimization of nonlinearity was obtained by considering the particle size and matrices refractive index.

Paper Details

Date Published: 5 November 2002
PDF: 5 pages
Proc. SPIE 4808, Optical Properties of Nanocrystals, (5 November 2002); doi: 10.1117/12.451988
Show Author Affiliations
Guohong Ma, National Univ. of Singapore (Singapore)
Sing-Hai Tang, National Univ. of Singapore (Singapore)
Wanxin Sun, National Univ. of Singapore (Singapore)
Jun He, National Univ. of Singapore (Singapore)
Hanzhuang Zhang, National Univ. of Singapore (Singapore)
Zexiang Shen, National Univ. of Singapore (Singapore)
Shixiong Qian, Fudan Univ. (China)

Published in SPIE Proceedings Vol. 4808:
Optical Properties of Nanocrystals
Zeno Gaburro, Editor(s)

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