DIFFRACTION OF LIGHT BY MAGNETOELASTIC WAVES
- 1 July 1967
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 11 (1) , 7-9
- https://doi.org/10.1063/1.1754950
Abstract
Diffraction of light at 1.15 μ has been observed from magnetoelastic waves at 1.1 GHz in YIG. A shift in the Bragg diffraction angle was observed when an external magnetic field was varied so as to change the spin wave admixture. The largest shift obtained experimentally was ‐2.0°, measured from the elastic limit of 9.5°. This shift was accompanied by a delay in the diffracted pulse of about 1 μsec. Under quasielastic conditions the diffracted intensity exhibited a series of maxima as the field was swept, due to magnetoelastic Faraday rotation.Keywords
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