Resonant Magnetic Induction Tomography of a Magnetized Sphere

Cavity optomagnonics and magnomechanics form a promising basis for an integrated platform for quantum information and sensing. For applications to blossom, proper comprehension and addressing of spin waves beyond the uniform precession mode is necessary. However, the traditional approach to identifying spin-wave modes shows ambiguities, potentially leading to misinterpretation and improper control of devices. This article presents a fresh approach: structural imaging of spin waves in a magnetized sphere by magnetic induction tomography. Until now, there has been no way to image and robustly identify the spin-wave modes in these macroscopic magnetized structures.