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Measurement of the profiles of disorder-induced localized resonances in photonic crystal waveguides by local tuning

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2016-09-19
Lian, Jin
Sokolov, Sergei
Yüce, Emre
COMBRİÉ, Sylvain
De Rossi, Alfredo
Mosk, Allard P.
Near the band edge of photonic crystal waveguides, localized modes appear due to disorder. We demonstrate a new method to elucidate spatial profile of the localized modes in such systems using precise local tuning. Using deconvolution with the known thermal profile, the spatial profile of a localized mode with quality factor (Q) > 10(5) is successfully reconstructed with a resolution of 2.5 mu m. (C) 2016 Optical Society of America