Abstract

We describe the magnetization-induced second-harmonic (SH) generation in $({{\mathrm{Fe}}^{\mathrm{II}}}_x{{\mathrm{Cr}}^{\mathrm{II}}}_{1-x}{)}_{1.5}[{\mathrm{Cr}}^{\mathrm{III}}(\mathrm{CN}{)}_6]·7.5{\mathrm{H}}_2\mathrm{O}$ and the magnetization-induced third-harmonic (TH) generation in ${\mathrm{Y}}_{1.5}{\mathrm{Bi}}_{1.5}{\mathrm{Fe}}_{3.8}{\mathrm{Al}}_{1.2}{\mathrm{O}}_{12}$ (Bi, Al:YIG). The polarization plane of a SH wave from a $({{\mathrm{Fe}}^{\mathrm{II}}}_x{{\mathrm{Cr}}^{\mathrm{II}}}_{1-x}{)}_{1.5}[{\mathrm{Cr}}^{\mathrm{III}}(\mathrm{CN}{)}_6]·7.5{\mathrm{H}}_2\mathrm{O}$ 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 ${\chi }_{\mathit{ijkL}}^{\mathrm{magn}(1)}$ 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 ${\chi }_{\mathit{yxxxZ}}^{\mathrm{magn}(1)}$ in a third-order nonlinear optical susceptibility.

© 2005 Optical Society of America

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