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Nonlinear optical spectroscopy of epitaxial magnetic garnet films

Nonlinear optical spectroscopy of epitaxial magnetic garnet films

Second and third harmonic optical spectra are studied in epitaxial magnetic thin films in the spectral ranges 1.7-3.2 eV and 2.4-4.2 eV, respectively. No significant increase of the intensity of the nonlinear spectra is found above the bandgap near 3.2 eV, where the linear absorption increases by tw...

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Bibliographic Details
Main Authors: Pavlov, V.V., Pisarev, R.V., Fiebig, M., Fröhlich, D.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2002
Series:Физика низких температур
Subjects:
Магнетизм
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/130228
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Summary:Second and third harmonic optical spectra are studied in epitaxial magnetic thin films in the spectral ranges 1.7-3.2 eV and 2.4-4.2 eV, respectively. No significant increase of the intensity of the nonlinear spectra is found above the bandgap near 3.2 eV, where the linear absorption increases by two orders of magnitude. Large magnetic contributions to the second harmonic spectra and magnetic contrast as high as 100% are observed at selected photon energies. Contrary to that, no magnetic contribution to the third harmonic spectra is found.

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