Transverse Tunable Magneto-Plasmonic Kerr Effect in Large Area Micro-Patterned Au/Co/Au Structures

Hamidi, Seyedeh Mehri; Behjati, S.; Sohrabi, Foozieh

doi:10.1007/s10948-017-4339-3

Cited by 2 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This enhancement of the magnetooptical (M-O) effects, especially that of the polar and transversal Kerr effects, has been reported for both types of plasmonic excitations: localized surface plasmons (LSPs) [6][7][8][9][10][11][12] -and for propagating surface plasmon polaritons (SPPs) [13][14][15][16][17][18][19] . Examples include hybrid nanostructures of noble metal/ferromagnetic structures such as Co/Au 20 , YIG/Au 19 , and Au/Co/Au trilayers 16,[21][22][23] , as well as in patterned pure magnetic films [24][25][26][27][28][29][30][31][32] .…”

Section: Introductionmentioning

confidence: 99%

Thickness dependent enhancement of the polar Kerr rotation in Co magnetoplasmonic nanostructures

et al. 2019

View full text Add to dashboard Cite

Large surface plasmon polariton assisted enhancement of the magneto-optical activity has been observed in the past, through spectral measurements of the polar Kerr rotation in Co hexagonal antidot arrays. Here, we report a strong thickness dependence, which is unexpected given that the Kerr effect is considered a surface sensitive phenomena. The maximum Kerr rotation was found to be -0.66 degrees for a 100 nm thick sample. This thickness is far above the typical optical penetration depth of a continuous Co film, demonstrating that in the presence of plasmons the critical lengthscales are dramatically altered, and in this case extended. We therefore establish that the plasmon enhanced Kerr effect does not only depend on the in-plane structuring of the sample, but also on the out-of-plane geometrical parameters, which is an important consideration in magnetoplasmonic device design. arXiv:1611.00078v4 [cond-mat.mes-hall]

show abstract

Section: Introductionmentioning

confidence: 99%

Thickness dependent enhancement of the polar Kerr rotation in Co magnetoplasmonic nanostructures

et al. 2019

View full text Add to dashboard Cite

show abstract

Magneto-optical engineering by plasmonic and dielectric metasurfaces in a CoFeB perforated microstructure

Shnan¹,

Roostaei²,

Hamidi³

2023

J. Opt. Soc. Am. B

View full text Add to dashboard Cite

We have investigated theoretically and experimentally the effect of plasmonic and all-dielectric metasurfaces on the magneto-optical response of the 2D periodic structure. For this purpose, we fabricate polydimethylsiloxane-based 2D microstructures. So, we coated them with a gold layer and a TiO2 dielectric layer as plasmonic and dielectric metasurfaces, respectively, CoFeB as the prominent magneto-optical thin films. We record the spectral magneto-optical longitudinal Kerr effect under 40 mT, and the spectrometer’s response in all visible regions. Our results show that the electric and magnetic dipole moments enhance the magneto-optical response by factors of one and two in two closer channels in 650 and 660 nm in an all-dielectric structure, respectively. The plasmonic hot spot-based magneto-optical enhancement is also confirmed in two other media with an enhancement factor of two.

show abstract

Transverse Tunable Magneto-Plasmonic Kerr Effect in Large Area Micro-Patterned Au/Co/Au Structures

Cited by 2 publications

References 25 publications

Thickness dependent enhancement of the polar Kerr rotation in Co magnetoplasmonic nanostructures

Thickness dependent enhancement of the polar Kerr rotation in Co magnetoplasmonic nanostructures

Magneto-optical engineering by plasmonic and dielectric metasurfaces in a CoFeB perforated microstructure

Contact Info

Product

Resources

About