Laser-induced Bragg resonances in ferrit/semiconductor heterostructure

The paper reports on laser-induced Bragg resonances in the spectrum of magnetostatic waves in a heterostructure based on a ferrite film [yttrium iron garnet (YIG)] with periodic strips of semiconductor material (Si) on the surface. Laser irradiation of such a structure leads to the formation of Brag...

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Bibliographic Details
Published in:Applied physics letters 2023-11, Vol.123 (20)
Main Authors: Morozova, M. A., Matveev, O. V., Gusev, S. A., Gusev, N. S., Romanenko, D. V., Nikitov, S. A.
Format: Article
Language:English
Subjects:
Applied physics
Energy gap
Frequency shift
Heterostructures
Lasers
Modulation
Radiant flux density
Semiconductor materials
Yttrium-iron garnet
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Summary:The paper reports on laser-induced Bragg resonances in the spectrum of magnetostatic waves in a heterostructure based on a ferrite film [yttrium iron garnet (YIG)] with periodic strips of semiconductor material (Si) on the surface. Laser irradiation of such a structure leads to the formation of Bragg bandgaps due to the modulation of the Si conductivity on the YIG surface, and the magnitude modulation increases with increasing laser radiation intensity. It is shown that an increase in laser radiation intensity also leads to an increase in the depth and frequency shift of the bandgaps.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0177337