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We present the parametric excitation of spin-wave modes in YIG micro-disksvia parallel pumping. Their spectroscopy is performed using magnetic resonanceforce microscopy (MRFM), while their spatial profiles are determined bymicro-focus Brillouin light scattering (BLS). We observe that almost all thefundamental eigenmodes of an in-plane magnetized YIG micro-disk, calculatedusing a micromagnetic eigenmode solver, can be excited using the parallelpumping scheme, as opposed to the transverse one. The comparison between theMRFM and BLS data on one side, and the simulations on the other side, providesthe complete spectroscopic labeling of over 40 parametrically excited modes.Our findings could be promising for spin-wave-based computation schemes, inwhich the amplitudes of a large number of spin-wave modes have to becontrolled.

Complete identification of spin-wave eigenmodes excited by parametric pumping in YIG microdisks