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Thickness dependent...
Thickness dependent enhancement of the polar Kerr rotation in Co magnetoplasmonic nanostructures
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- Rowan-Robinson, Richard M. (författare)
- Uppsala universitet,Materialfysik
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- Melander, Emil, 1985- (författare)
- Uppsala universitet,Materialfysik
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- Chioar, Ioan-Augustin (författare)
- Uppsala universitet,Materialfysik
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- Caballero, Blanca (författare)
- CSIC, CNM, IMM, Isaac Newton 8,PTM, E-28760 Madrid, Spain
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- Garcia-Martin, Antonio (författare)
- CSIC, CNM, IMM, Isaac Newton 8,PTM, E-28760 Madrid, Spain
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- Papaioannou, Evangelos Th. (författare)
- Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany;Tech Univ Kaiserslautern, Forschungszentrum OPTIMAS, D-67663 Kaiserslautern, Germany
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- Kapaklis, Vassilios, 1978- (författare)
- Uppsala universitet,Materialfysik
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(creator_code:org_t)
- American Institute of Physics (AIP), 2019
- 2019
- Engelska.
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Ingår i: AIP Advances. - : American Institute of Physics (AIP). - 2158-3226. ; 9:2
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://aip.scitatio...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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. (c) 2019 Author(s).
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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