@article{9aa27cb8556c48a096bf5432db834e7e,
title = "Selection rules for cavity-enhanced Brillouin light scattering from magnetostatic modes",
abstract = "We identify experimentally the magnetostatic modes active for Brillouin light scattering in the optical whispering gallery modes of a yttrium iron garnet sphere. Each mode is identified by magnetic-field dispersion of ferromagnetic-resonance spectroscopy and coupling strength to the known field distribution of the microwave drive antenna. Our optical measurements confirm recent predictions that higher-order magnetostatic modes can also generate optical scattering, according to the selection rules derived from the axial symmetry. From this we summarize the selection rules for Brillouin light scattering. We give experimental evidence that the optomagnonic coupling to nonuniform magnons can be higher than that of the uniform Kittel mode.",
author = "Haigh, {J. A.} and Lambert, {N. J.} and S. Sharma and Blanter, {Y. M.} and Bauer, {G. E.W.} and Ramsay, {A. J.}",
note = "Funding Information: This work was supported by the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 732894 (FET Proactive HOT), the Netherlands Organisation for Scientific Research (NWO), and Grant-in-Aid for Scientific Research (Grant No. 26103006) of the Japan Society for the Promotion of Science (JSPS). Funding Information: We are grateful to Andreas Nunnenkamp and Mattias Weiler for useful discussions. This work was supported by the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 732894 (FET Proactive HOT), the Netherlands Organisation for Scientific Research (NWO), and Grant-in-Aid for Scientific Research (Grant No. 26103006) of the Japan Society for the Promotion of Science (JSPS). Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = jun,
day = "20",
doi = "10.1103/PhysRevB.97.214423",
language = "English",
volume = "97",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "21",
}