  An experimental scheme for studying spin wave propagation across thin film
samples is proposed. An experiment upon a periodically layered nanowire is
numerically simulated, while the sample might equally well be a continuous film
or an array of elements (e.g. nanowires) that either have uniform composition
or are periodically layered as in a magnonic crystal. The experiments could be
extended to study domain wall induced spin wave phase shifts, and used for
creation of the spin wave magnetic logic devices.
