Magnetization-induced second-harmonic generation (SHG) in layer-by-layer as
sembled films containing yttrium iron garnet nanoparticles is observed. The
SHG intensity, including its magnetoinduced component, linearly increases
with the number of self-assembling layers, which indicates along with diffu
seness of the SHG radiation that SHG occurs in its incoherent form: hyper-R
ayleigh scattering (HRS). The nonlinear magneto-optical Kerr effect in HRS
has a noticeable magnetic contrast brought about by the internal homodyne m
echanism. (C) 2001 American Institute of Physics.