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Magnetic imaging in photonic crystal microcavities

Vignolini, S; Intonti, F; Riboli, F; Balet, L; Li, LH; Francardi, M; Gerardino, A; ... Gurioli, M; + view all (2010) Magnetic imaging in photonic crystal microcavities. Physical review letters , 105 (12) , Article 123902. 10.1103/PhysRevLett.105.123902. Green open access

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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.

Type: Article
Title: Magnetic imaging in photonic crystal microcavities
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.105.123902
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.105.123902
Language: English
Additional information: © 2010 The American Physical Society
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1398451
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