Probing the Electromagnetic Field Distribution within a Metallic Nanodisk

Authors

  • David Meneses-Rodríguez,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • Elías Ferreiro-Vila,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • Patricia Prieto,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • José Anguita,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • María U. González,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • José M. García-Martín,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • Alfonso Cebollada,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • Antonio García-Martín,

    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
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  • Gaspar Armelles

    Corresponding author
    1. IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701
    • IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, PTM, E-28760 Tres Cantos. Madrid, Spain Fax: (+34)918 060 701.

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Abstract

A Co nanolayer is used as a local probe to evaluate the vertical inhomogeneous distribution of the electromagnetic (EM) field within a resonant metallic nanodisk. Taking advantage of the direct relation between the magneto-optical activity and the electromagnetic field intensity in the Co layer, it is shown that the nonuniform EM distribution within the nanodisk under plasmon resonant conditions has maximum values close to the upper and lower flat faces, and a minimum value in the middle.

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