Spin waves are proposed as information carriers for next-generation computing devices because of their low power consumption. Moreover, wave-like nature allows novel paradigms. Conventional methods to detect spin based either on electrical induction, limiting the downscaling and efficiency complicating eventual implementation, or light scattering, where minimum detectable spin-wave wavelength i...

We present a near-field diffraction model for spin waves in perpendicularly magnetized films applicable any geometries of excitation fields. This relies on Kalinikos-Slavin formalism to express the dynamic susceptibility tensor k-space, and calculate patterns via inverse 2D-Fourier transform response functions. show an excellent quantitative agreement between our MuMax3 micro-magnetic simulatio...

The term “diffraction” has been defined by Sommerfeld as follows (E. Hecht, 2002): any deviation of light rays from rectilinear paths which cannot be interpreted as reflection or refraction. Diffraction is caused by the confinement of the lateral extent of a wave and is most importantly when that confinement is comparable in size to the wavelength of the radiation being used. The first accurate...

Diffraction describes the perturbation of the propagation of wave motion when the wave encounters an object with different properties from the medium in which the wave is normally propagating. It is a subset of the more general phenomenon of scattering, for example the scattering of accelerated subatomic particles by nuclei that is explored by nuclear physicists or the scattering of visible lig...

Image processing by means of an interactive pupil technique is described. A Bragg-diffraction sound cell is used to achieve both wave-front division and temporal-carrier offset.