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Proceedings Paper

The third-order optical nonlinearity of Fe2O3 nanoparticles capped with glutamic acid molecules and bare particles in hydrosol
Author(s): Mi Liu; Ming Ma; Yiping Cui; Yu Zhang; Gang Wang; Yongkang Sun
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Paper Abstract

The third-order optical nonlinearity of Fe2O3 nanoparticles capped with glutamic acid molecules and bare particles in hydrosol have been investigated by Z-scan technique. The signs and magnitudes of nonlinear refractive coefficients (γ) of these two kinds Fe2O3 nanoparticles were obtained. The results suggested that γ was intensively subject to the surface-capping molecules. This phenomenon may be in particular considered with local field enhancement effect related to the refractive index of the media around nanoparticles, and the local field enhancement factor was evaluated by the solution of Laplace's equation.

Paper Details

Date Published: 28 January 2005
PDF: 9 pages
Proc. SPIE 5646, Nonlinear Optical Phenomena and Applications, (28 January 2005); doi: 10.1117/12.574953
Show Author Affiliations
Mi Liu, Southeast Univ. (China)
Ming Ma, Southeast Univ. (China)
Yiping Cui, Southeast Univ. (China)
Yu Zhang, Southeast Univ. (China)
Gang Wang, Southeast Univ. (China)
Yongkang Sun, Southeast Univ. (China)


Published in SPIE Proceedings Vol. 5646:
Nonlinear Optical Phenomena and Applications
Qihuang Gong; Yiping Cui; Roger A. Lessard, Editor(s)

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