Scientific Results

Magnetic Imaging in Photonic Crystal Microcavities

Year: 2010

Authors: Vignolini S., Intonti F., Riboli F., Balet L., Li LH., Francardi M., Gerardino A., Fiore A., Wiersma D., Gurioli M.

Autors Affiliation: European Lab Non Linear Spect, I-50019 Sesto Fiorentino, FI, Italy; CNR – Istituto Nazionale di Ottica, I-50019 Sesto Fiorentino, FI, Italy; Ecole Polytech Fed Lausanne, Inst Photon & Quantum Elect, CH-1015 Lausanne, Switzerland; Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands; CNR, Inst Photon & Nanotechnol, I-00156 Rome, Italy

Abstract: 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.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 105 (12)      Pages from: 123902  to: 123902

More Information: We acknowledge financial support from the FAR under Project No. 851, the Network of Excellence on Nanophotonics Phoremost, and ENI Novara.
DOI: 10.1103/PhysRevLett.105.123902

Citations: 44
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English