Measuring the spatial extent of individual localized photonic states

Marko Spasenovic*, Daryl M. Beggs, Philippe Lalanne, Thomas F. Krauss, L. Kuipers

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

13 Citations (Scopus)

Abstract

We measure the spatial extent of individual photonic states that are localized by residual disorder in a slow-light photonic crystal waveguide. The size of the states is measured by locally perturbing them individually through an electromagnetic interaction with a near-field probe. We identify localized states that are not observed in transmission and show that they are shorter than the waveguide length. We also obtain near-field measurements of the participation ratio, from which the size of the states is also derived, in quantitative agreement with the size measured with the perturbation method.

Original languageEnglish
Article number155153
Number of pages5
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume86
Issue number15
DOIs
Publication statusPublished - 26 Oct 2012

Keywords

  • CRYSTAL WAVE-GUIDES
  • ANDERSON LOCALIZATION
  • SLOW-LIGHT
  • EVANESCENT MODES
  • FIELD
  • LATTICES
  • SYSTEMS

Cite this