Cavity magnonics is an emerging research area focusing on the coupling between magnons and photons. Despite its great potential for coherent information processing, it has been long restricted by the narrow interaction bandwidth. In this work, we theoretically propose and experimentally demonstrate a novel approach to achieve broadband photon-magnon coupling by adopting slow waves on engineered microwave waveguides. To the best of our knowledge, this is the first time that slow wave is combined with hybrid magnonics. Its unique properties promise great potentials for both fundamental research and practical applications, for instance, by deepening our understanding of the light-matter interaction in the slow wave regime and providing high-efficiency spin wave transducers. The device concept can be extended to other systems such as optomagnonics and magnomechanics, opening up new directions for hybrid magnonics.
@article{arxiv.2402.08872,
title = {Slow-Wave Hybrid Magnonics},
author = {Jing Xu and Changchun Zhong and Shihao Zhuang and Chen Qian and Yu Jiang and Amin Pishehvar and Xu Han and Dafei Jin and Josep M. Jornet and Bo Zhen and Jiamian Hu and Liang Jiang and Xufeng Zhang},
journal= {arXiv preprint arXiv:2402.08872},
year = {2024}
}