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Opt Express. 2009 Nov 23;17(24):21672-9. doi: 10.1364/OE.17.021672.

Tuning of an active photonic crystal cavity by an hybrid silica/silicon near-field probe.

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  • 1Universit√© de Lyon, Institut des Nanotechnologies de Lyon INL-UMR 5270, CNRS, Ecole Centrale de Lyon, Ecully, France. gaelle.le-gac@ec-lyon.fr

Abstract

The influence of a near-field tip on the spectral characteristics of a resonant mode of an active photonic crystal micro-cavity was investigated. The wavelength shift of the mode was theoretically and experimentally demonstrated and evaluated as a function of the nature and the position of the tip above the cavity. Experiment showed that the shift induced is ten times higher with a Si-coated silica probe than with a bare silica tip: a shift until 2 nm was reached with Si-coated tip whereas the shift with bare silica tip is in the range of the tenth of nanometer, for wavelengths around 1,55 microm.

PMID:
19997408
[PubMed - indexed for MEDLINE]
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