Abstract
The transformation of the trajectories of surface magnetostatic waves propagating in a ferrite film magnetized by a linearly nonuniform field caused by a high-power femtosecond laser pulse is considered. A decrease in the magnetization of the film due to an increase in its temperature can be used to account for the effect of light on wave propagation. The stepwise transformation of the trajectories of propagating waves that is synchronous with the time parameters of the femtosecond pulse is revealed. The transformation of trajectories is interpreted using the method of isofrequency curves and the Hamilton–Auld method.
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