We study spin-wave transport in a microstructured Ni81Fe19 waveguide exhibiting broken translational symmetry. We observe the conversion of a beam profile composed of symmetric spin-wave width modes with odd numbers of antinodes n=1,3,... into a mixed set of symmetric and asymmetric modes. Due to the spatial homogeneity of the exciting field along the used microstrip antenna, quantized spin-wave modes with an even number n of antinodes across the stripe's width cannot be directly excited. We show that a break in translational symmetry may result in a partial conversion of even spin-wave waveguide modes
@article{arxiv.1109.1958,
title = {Mode conversion by symmetry breaking of propagating spin waves},
author = {P. Clausen and K. Vogt and H. Schultheiss and S. Schäfer and B. Obry and G. Wolf and P. Pirro and B. Leven and B. Hillebrands},
journal= {arXiv preprint arXiv:1109.1958},
year = {2012}
}