Magnetic imaging in photonic crystal microcavities

S. Vignolini, F. Intonti, F. Riboli, L.P. Balet, L.H. Li, M. Francardi, A. Gerardino, A. Fiore, D.S. Wiersma, M. Gurioli

Research output: Contribution to journalArticleAcademicpeer-review

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We demonstrate the nonresonant magnetic interaction at optical frequencies between a photonic crystal microcavity and a metallized near-field microscopy probe. This interaction can be used to map and control the magnetic component of the microcavity modes. The metal coated tip acts as a microscopic conductive ring, which induces a magnetic response opposite to the inducing magnetic field. The resulting shift in resonance frequency can be used to measure the distribution of the magnetic field intensity of the photonic structure and fine-tune its optical response via the magnetic field components.
Original languageEnglish
Article number123902
Number of pages4
JournalPhysical Review Letters
Issue number12
Publication statusPublished - 2010


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