Probing magnetic and electric optical responses of silicon nanoparticles

Dmitry Permyakov, Ivan Sinev, Dmitry Markovich, Pavel Ginzburg, Anton Samusev, Pavel Belov, Vytautas Valuckas, Arseniy I. Kuznetsov, Boris S. Luk'yanchuk, Andrey E. Miroshnichenko, Dragomir N. Neshev, Yuri S. Kivshar

    Research output: Contribution to journalArticlepeer-review

    68 Citations (Scopus)

    Abstract

    We study experimentally both magnetic and electric optically induced resonances of silicon nanoparticles by combining polarization-resolved dark-field spectroscopy and near-field scanning optical microscopy measurements. We reveal that the scattering spectra exhibit strong sensitivity of electric dipole response to the probing beam polarization and attribute the characteristic asymmetry of measured near-field patterns to the excitation of a magnetic dipole mode. The proposed experimental approach can serve as a powerful tool for the study of photonic nanostructures possessing both electric and magnetic optical responses.

    Original languageEnglish
    Article number171110
    JournalApplied Physics Letters
    Volume106
    Issue number17
    DOIs
    Publication statusPublished - 27 Apr 2015

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