Fresnel diffraction of spin waves

N. Loayza, M. B. Jungfleisch, A. Hoffmann, M. Bailleul, V. Vlaminck

Research output: Contribution to journalArticlepeer-review


The propagation of magnetostatic forward volume waves excited by a constricted coplanar waveguide is studied via inductive spectroscopy techniques. A series of devices consisting of pairs of submicrometer size antennae is used to perform a discrete mapping of the spin wave amplitude in the plane of a 30-nm thin YIG film. We found that the spin wave propagation remains well focused in a beam shape of width comparable to the constriction length and that the amplitude within the constriction displays oscillations, two features which are explained in terms of near-field Fresnel diffraction theory.

Original languageEnglish (US)
Article number144430
JournalPhysical Review B
Issue number14
StatePublished - Oct 22 2018
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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