Abstract
It is demonstrated that non-resonant (ωs ≠ ωp/2) wave front reversal (WFR) of spin-wave pulses (carrier frequency ωs) caused by pulsed parametric pumping (carrier frequency ωp) can be effectively used for microwave signal processing. When the spectral width Ωs of the signal is wider than the frequency band Ωp of signal amplification by pumping (Ωs ≫ Ωp), the non-resonant WFR can be used for the analysis of the signal spectrum. In the opposite case (Ωs ≪ Ωp) the non-resonant WFR can be used for active (with amplification) filtering of the input signal.
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