Interaction of optical waveguide modes with dipole‐exchange surface spin waves in a Lu2.14Bi0.86Fe4.94Mg0.06O12film

Autor:	Mikhail Kostylev, Andrey Stashkevich, V. V. Matyushev, J.M. Desvignes
Rok vydání:	1995
Předmět:	Surface (mathematics) Diffraction Physics Spin polarization Condensed matter physics business.industry media_common.quotation_subject General Physics and Astronomy Resonance Asymmetry Dipole Amplitude Optics Spin wave business media_common
Zdroj:	Journal of Applied Physics. 77:2087-2089
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.358850
Popis:	Collinear interactions of guided light with dipole‐exchange spin waves in a 4.66‐μm‐thick Lu2.14Bi0.86Fe4.94Mg0.06O12 single crystal film has been experimentally investigated. For all four regimes of interaction TM5→TE5, TM6→TE6, TM7→TE7, TM8→TE8 diffraction peaks had a complex ‘‘fine structure’’ indicating the splitting of the spectrum of the spin waves. Frequencies of these peaks are in good agreement with the theoretical predictions based on the numerical estimations of the strong ‘‘hybridization’’ of a magnetostatic mode with seventeen spin wave resonance modes. The analysis of the amplitudes of the diffraction peaks corresponding to different hybrid spin wave modes has shown the presence of asymmetry of the pinning conditions on the surfaces of the film.
Databáze:	OpenAIRE
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