A patterned all-dielectric substrate converts a normally polarized THz pulse into a field with an out-of-plane magnetic component and uses it to excite spin oscillations in a ferrimagnetic garnet film.
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All-dielectric Metaphotonics for Advanced THz Control of Spins
A patterned all-dielectric substrate converts a normally polarized THz pulse into a field with an out-of-plane magnetic component and uses it to excite spin oscillations in a ferrimagnetic garnet film.