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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la301239x
|2 doi
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|a eng
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| 100 |
1 |
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|a Rubio-Roy, M
|e verfasserin
|4 aut
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| 245 |
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|a Magneto-optical enhancement by plasmon excitations in nanoparticle/metal structures
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a Date Completed 23.10.2012
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|a Date Revised 19.06.2012
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Coupling magnetic materials to plasmonic structures provides a pathway to dramatically increase the magneto-optical response of the resulting composite architecture. Although such optical enhancement has been demonstrated in a variety of systems, some basic aspects are scarcely known. In particular, reflectance/transmission modulations and electromagnetic field intensification, both triggered by plasmon excitations, can contribute to the magneto-optical enhancement. However, a quantitative evaluation of the impact of both factors on the magneto-optical response is lacking. To address this issue, we have measured magneto-optical Kerr spectra on corrugated gold/dielectric interfaces with magnetic (nickel and iron oxide) nanoparticles. We find that the magneto-optical activity is enhanced by up to an order of magnitude for wavelengths that are correlated to the excitation of propagating or localized surface plasmons. Our work sheds light on the fundamental principles for the observed optical response and demonstrates that the outstanding magneto-optical performance is originated by the increase of the polarization conversion efficiency, whereas the contribution of reflectance modulations is negligible
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|a Journal Article
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|a Vlasin, O
|e verfasserin
|4 aut
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1 |
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|a Pascu, O
|e verfasserin
|4 aut
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|a Caicedo, J M
|e verfasserin
|4 aut
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| 700 |
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|a Schmidt, M
|e verfasserin
|4 aut
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|a Goñi, A R
|e verfasserin
|4 aut
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|a Tognalli, N G
|e verfasserin
|4 aut
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1 |
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|a Fainstein, A
|e verfasserin
|4 aut
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|a Roig, A
|e verfasserin
|4 aut
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|a Herranz, G
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 28(2012), 24 vom: 19. Juni, Seite 9010-20
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:28
|g year:2012
|g number:24
|g day:19
|g month:06
|g pages:9010-20
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|u http://dx.doi.org/10.1021/la301239x
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