An overview of microwave and optical magnetics is given with emphasis on physical models for the magnetic susceptibility, the properties of electromagnetic waves in ferrites, the magnetostatic approximation, and devices based upon dynamic and magnetostatic modes.Particular attention is given to the microstrip circulator as an example of one of the most widely used ferrite devices based on dynamic modes. Field theory as well as S-parameter treatments are given.Finally, the theory and applications of magnetostatic waves in thin films are discussed. A particularly promising area of research is the interaction of magnetostatic waves with optical guided modes. This interaction could lead to a new class of optical and microwave signal processing devices.
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- Microwave and Optical Magnetics
Daniel D. Stancil
- Springer Netherlands