Plasmon-assisted high reflectivity and strong magneto-optical Kerr effect in permalloy gratings

Nikita Kostylev; Ivan S. Maksymov; Adekunle O. Adeyeye; Sergey Samarin; Mikhail Kostylev; Jim F. Williams

doi:10.1063/1.4798657

Plasmon-assisted high reflectivity and strong magneto-optical Kerr effect in permalloy gratings

Nikita Kostylev^*, Ivan S. Maksymov, Adekunle O. Adeyeye, Sergey Samarin, Mikhail Kostylev, Jim F. Williams

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

We demonstrate experimentally a strong plasmon-assisted enhancement of the transverse magneto-optical Kerr effect in permalloy gratings. The enhanced transverse magneto-optical Kerr effect is accompanied by an increased grating reflectivity with the maximum of enhancement being correlated with plasmonic Fano resonances. This correlation was confirmed by an intuitive Fano model and also through full-vectorial optical simulations. Simultaneously high reflectivity and transverse magneto-optical Kerr effect as well as narrowest ferromagnetic resonance linewidth and vanishing anisotropy make permalloy nanostructures attractive for applications in spintronics and nano-optics such as, for example, all-optical excitation of propagating spin waves and spectral tuning of optical nanoantennas.

Original language	English
Article number	121907
Journal	Applied Physics Letters
Volume	102
Issue number	12
DOIs	https://doi.org/10.1063/1.4798657
Publication status	Published - 25 Mar 2013

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abstract = "We demonstrate experimentally a strong plasmon-assisted enhancement of the transverse magneto-optical Kerr effect in permalloy gratings. The enhanced transverse magneto-optical Kerr effect is accompanied by an increased grating reflectivity with the maximum of enhancement being correlated with plasmonic Fano resonances. This correlation was confirmed by an intuitive Fano model and also through full-vectorial optical simulations. Simultaneously high reflectivity and transverse magneto-optical Kerr effect as well as narrowest ferromagnetic resonance linewidth and vanishing anisotropy make permalloy nanostructures attractive for applications in spintronics and nano-optics such as, for example, all-optical excitation of propagating spin waves and spectral tuning of optical nanoantennas.",

author = "Nikita Kostylev and Maksymov, {Ivan S.} and Adeyeye, {Adekunle O.} and Sergey Samarin and Mikhail Kostylev and Williams, {Jim F.}",

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AU - Kostylev, Nikita

AU - Maksymov, Ivan S.

AU - Adeyeye, Adekunle O.

AU - Samarin, Sergey

AU - Kostylev, Mikhail

AU - Williams, Jim F.

PY - 2013/3/25

Y1 - 2013/3/25

N2 - We demonstrate experimentally a strong plasmon-assisted enhancement of the transverse magneto-optical Kerr effect in permalloy gratings. The enhanced transverse magneto-optical Kerr effect is accompanied by an increased grating reflectivity with the maximum of enhancement being correlated with plasmonic Fano resonances. This correlation was confirmed by an intuitive Fano model and also through full-vectorial optical simulations. Simultaneously high reflectivity and transverse magneto-optical Kerr effect as well as narrowest ferromagnetic resonance linewidth and vanishing anisotropy make permalloy nanostructures attractive for applications in spintronics and nano-optics such as, for example, all-optical excitation of propagating spin waves and spectral tuning of optical nanoantennas.

AB - We demonstrate experimentally a strong plasmon-assisted enhancement of the transverse magneto-optical Kerr effect in permalloy gratings. The enhanced transverse magneto-optical Kerr effect is accompanied by an increased grating reflectivity with the maximum of enhancement being correlated with plasmonic Fano resonances. This correlation was confirmed by an intuitive Fano model and also through full-vectorial optical simulations. Simultaneously high reflectivity and transverse magneto-optical Kerr effect as well as narrowest ferromagnetic resonance linewidth and vanishing anisotropy make permalloy nanostructures attractive for applications in spintronics and nano-optics such as, for example, all-optical excitation of propagating spin waves and spectral tuning of optical nanoantennas.

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DO - 10.1063/1.4798657

M3 - Article

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 12

M1 - 121907

ER -

Plasmon-assisted high reflectivity and strong magneto-optical Kerr effect in permalloy gratings

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