Transverse Magneto-Optical Kerr Effect in Strongly Coupled Plasmon Gratings

Enhancement of magneto-optical response by coupling of propagating with localized plasmons in a structure based on silver and bismuth-substituted ferrite garnet has been numerically studied. It is shown that the absolute value of the magneto-optical response in the examined structure reaches a high...

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Published inPlasmonics (Norwell, Mass.) Vol. 13; no. 3; pp. 885 - 889
Main Authors Chesnitskiy, Anton V., Gayduk, Alexey E., Prinz, Victor Ya
Format Journal Article
LanguageEnglish
Published New York Springer US 01.06.2018
Springer Nature B.V
Subjects
Biochemistry
Biological and Medical Physics
Biophysics
Biotechnology
Bismuth
Chemistry
Chemistry and Materials Science
Coupling
Gratings (spectra)
Kerr magnetooptical effect
Nanotechnology
Plasmons
Reflectance
Reflection
Scanning electron microscopy
Fano resonance
Plasmon
Grating
Transverse magneto-optical Kerr effect
Ferromagnetic dielectric
Plasmon coupling
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Summary:Enhancement of magneto-optical response by coupling of propagating with localized plasmons in a structure based on silver and bismuth-substituted ferrite garnet has been numerically studied. It is shown that the absolute value of the magneto-optical response in the examined structure reaches a high value of 0.04, and the structure has a reflection coefficient sufficiently high for a number of practical applications. The strong coupling between localized and propagating plasmons, which caused the significant enhancement of the magneto-optical response, was manifested in the reflection spectrum of the structure in the form of an asymmetric Fano-like resonance. The proposed structure, intended for operation in the near infrared range, is a promising one for solving various problems in magnonics and bionanophotonics.
ISSN:1557-1955
1557-1963
DOI:10.1007/s11468-017-0584-3