Superstrong coupling of thin film magnetostatic waves with microwave cavity
Abstract
We experimentally demonstrated the strong coupling between a microwave cavity and standing magnetostatic magnon modes in a yttrium iron garnet film. Such strong coupling can be observed for various spin wave modes under different magnetic field bias configurations, with a coupling strength inversely proportional to the transverse mode number. A comb-like spectrum can be obtained from these high order modes. The collectively enhanced magnon-microwave photon coupling strength is comparable with the magnon free spectral range and therefore leads to the superstrong coupling regime. Our findings pave the road towards designing a new type of strongly hybridized magnon-photon system.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 13, 2016
- Source ID
- 10.1063/1.4939134
Entities
People
- Changling Zou
- Hong X Tang
- Liang Jiang
- Xufeng Zhang
Organizations
- David and Lucile Packard Foundation
- Defense Advanced Research Projects Agency
- Yale University