SW diffraction

SpinWave Diffraction and Perfect Imaging of a Grating.
S. Mansfeld, J. Topp, K. Martens, J. N. Toedt, W. Hansen, D. Heitmann, and S. Mendach
Phys. Rev. Lett. 108, 047204 (2012) 

Sketch of the experimental arrangement. S denotes the signal line, and G1 and G2 denote the ground lines of the coplanar wave guide. An exemplary TR-SKM phase image of the spin wave field taken at 10 mT and 4180 MHz is overlaid as a color density plot on a part of the Permalloy film.