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

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Lian J., Sokolov S., Yuce E., COMBRİÉ S., De Rossi A., Mosk A. P.

OPTICS EXPRESS, vol.24, no.19, pp.21939-21947, 2016 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 19
  • Publication Date: 2016
  • Doi Number: 10.1364/oe.24.021939
  • Journal Name: OPTICS EXPRESS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.21939-21947
  • Middle East Technical University Affiliated: Yes

Abstract

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