Light scattering in a spin-wave gyrotropic waveguide
Abstract
A theory of inelastic scattering of light in a plane magnetostatic-spin-wave (MSW) gyrotropic waveguide is developed with reference to the design of microwave YIG-film devices. Particular attention is given to the collinear conversion of optical waveguide modes in the presence of traveling MSWs. Estimates for Bi-doped Y3F5O12 films predict a 30-percent conversion of optical waveguide modes for an MSW power of approximately 100 mW. It is shown that the mode-conversion efficiency depends on the MSW power and the magnitude of the specific Faraday rotation.
- Publication:
-
Radiotekhnika i Elektronika
- Pub Date:
- August 1985
- Bibcode:
- 1985RaEl...30.1522G
- Keywords:
-
- Gyrotropism;
- Magneto-Optics;
- Magnetostatic Amplifiers;
- Magnons;
- Mode Transformers;
- Optical Waveguides;
- Yttrium-Iron Garnet;
- Collinearity;
- Coupling;
- Faraday Effect;
- Inelastic Scattering;
- Light Scattering;
- Microwave Equipment;
- Thin Films;
- Traveling Wave Modulation;
- Electronics and Electrical Engineering