Chinese Optics Letters, 2004, 2 (6): 06339, Published Online: Jun. 6, 2006
Nonlinear optical and magneto-optical effects in non-spherical magnetic granular composite
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.
Ping Xu, Zhenya Li. Nonlinear optical and magneto-optical effects in non-spherical magnetic granular composite[J]. Chinese Optics Letters, 2004, 2(6): 06339.