Journal
OPTICS EXPRESS
Volume 17, Issue 24, Pages 21672-21679Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.021672
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- French Research National Agency
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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 mu m. (C) 2009 Optical Society of America
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