Measurement of the profiles of disorder-induced localized resonances in   photonic crystal waveguides by local tuning
  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. 
J. Lian (1,2), S. Sokolov (1,2), E. Y\"uce (2,3), S. Combri\'e (4), A.   De Rossi (4) and A.P. Mosk (1). ((1) Nanophotonics,...
physics.optics