We describe the magnetization-induced second-harmonic (SH) generation in (Fe^II_xCr^II_1−x)_1.5[Cr^III(CN)_6]⋅7.5H2O and the magnetization-induced third-harmonic (TH) generation in Y1.5Bi1.5Fe3.8Al1.2O12 (Bi,Al:YIG). The polarization plane of a SH wave from a (Fe^II_xCr^II_1−x)1.5[Cr^III(CN)6]⋅7.5H2O film was rotated by an applied external magnetic field. This SH rotation is ascribed to the interaction between the electric polarization along the out-of-plane and spontaneous magnetizations. In particular, the magnetic linear term chi_ijkL magn(1) contributed to the SH rotation. Applying a longitudinal external magnetic field to a Bi,Al:YIG magnetic film rotated the polarization plane of the TH wave. This TH rotation is understood by the contribution of the magnetic term of chi_yxxxZ magn(1) in a third-order nonlinear optical susceptibility.
© 2005 Optical Society of America
Shin-ichi Ohkoshi, Jusuke Shimura, Katsuyoshi Ikeda, and Kazuhito Hashimoto, "Magnetization-induced second- and third-harmonic generation in transparent magnetic films," J. Opt. Soc. Am. B 22, 196-203 (2005)