OPTICS EXPRESS, cilt.24, sa.19, ss.21939-21947, 2016 (SCI-Expanded)
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