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12 May 2009 Magneto-optical response enhancement in 1D and 2D magnetoplasmonic crystals
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Abstract
The results of experimental observation of magneto-optical Kerr effect (MOKE) enhancement caused by surface plasmon-polaritons (SPP) excitation in 1D and 2D magnetoplasmonic crystals are presented. One-dimensional nickel magnetoplasmonic crystals have periodic structure formed by periodic nickel grooves made on nickel surface. The period of the structure is 320 nm and the depth of the grooves is 50 nm. The second group of the samples represents itself a 2D self-assembled hexagonally ordered monolayer of polystyrene (PS) microspheres with diameters from 500 to 760 nm and covered by 100- nm - thick nickel film. MOKE measurements performed in transversal configuration demonstrate that SPP excitation lead to transversal Kerr effect (TKE) enhancement resulting as a sharp peak in TKE spectrum.
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A. A. Grunin, A. G. Zhdanov, B. B. Tsema, A. A. Ezhov, T. V. Dolgova, E. A. Ganshina, M. H. Hong, and A. A. Fedyanin "Magneto-optical response enhancement in 1D and 2D magnetoplasmonic crystals", Proc. SPIE 7353, Metamaterials IV, 73530F (12 May 2009); https://doi.org/10.1117/12.820704
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