Size and dielectric dependence of off-resonant nonlinearity in Au: dielectric nanocomposite system

Guohong Ma; Sing-Hai Tang; Wanxin Sun; Jun He; Hanzhuang Zhang; Zexiang Shen; Shixiong Qian

doi:10.1117/12.451988

5 November 2002 Size and dielectric dependence of off-resonant nonlinearity in Au: dielectric nanocomposite system

Guohong Ma, Sing-Hai Tang, Wanxin Sun, Jun He, Hanzhuang Zhang, Zexiang Shen, Shixiong Qian

Proceedings Volume 4808, Optical Properties of Nanocrystals; (2002) https://doi.org/10.1117/12.451988
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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.

Citation Download Citation

Guohong Ma, Sing-Hai Tang, Wanxin Sun, Jun He, Hanzhuang Zhang, Zexiang Shen, and Shixiong Qian "Size and dielectric dependence of off-resonant nonlinearity in Au: dielectric nanocomposite system", Proc. SPIE 4808, Optical Properties of Nanocrystals, (5 November 2002); https://doi.org/10.1117/12.451988

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