Observation of strong magnetic effects in visible-infrared sum frequency generation from magnetic structures
نویسندگان
چکیده
We have observed very strong magnetization-induced changes of the infrared-visible sum-frequency generation ~SFG! intensity from thin magnetic films using a free electron laser as a tunable infrared source. With the help of a magnetic grating a clear resonance is observed due to the excitation of surface plasmonpolaritons. The magnetization dependence of this resonance opens the way for nonlinear magneto-optical SFG studies of magnetic surface excitations.
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تاریخ انتشار 2000