Nonlinear optical and magneto-optical effects in non-spherical magnetic granular composite

Ping Xu; Zhenya Li

Chinese Optics Letters, 2004, 2 (6): 06339, Published Online: Jun. 6, 2006

Nonlinear optical and magneto-optical effects in non-spherical magnetic granular composite

论文大纲

Ping Xu ¹Zhenya Li ^1,2,*

Author Affiliations

¹ Department of Physics, Suzhou University, Suzhou 215006

² CCAST (World Laboratory), P. O. Box 8730, Beijing 100080

190.4720 optical nonlinearities of condensed matter 160.3820 magneto-optical materials 350.4990 particles

Abstract

The magnetization-induced nonlinear optical and nonlinear magneto-optical properties in a magnetic metal-insulator composite are studied based on a tensor effective medium approximation with shape factor and Taylor-expansion method. There is a weakly nonlinear relation between electric displacement D and electric field E in the composite. The results of our studies on the effective dielectric tensor and the nonlinear susceptibility tensor in a magnetic nanocomposite are surveyed. It is shown that such a metal-insulator composite exhibits the enhancements of optical and magneto-optical nonlinearity. The frequencies at which the enhancements occur, and the amplitude of the enhancement factors depend on the concentration and shape of the magnetic grains.

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Ping Xu, Zhenya Li. Nonlinear optical and magneto-optical effects in non-spherical magnetic granular composite[J]. Chinese Optics Letters, 2004, 2(6): 06339.

Nonlinear optical and magneto-optical effects in non-spherical magnetic granular composite

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