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

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.

References in corpus (6)

• Cavity Quantum Electrodynamics with Anderson-localized Modes
• Optical extinction due to intrinsic structural variations of photonic crystals
• Electromagnetic modes of a disordered photonic crystal
• Lower bound for the spatial extent of localized modes in photonic-crystal waveguides with small random imperfections
• Local thermal resonance control of GaInP photonic crystal membrane cavities using ambient gas cooling
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Cited by in corpus (5)

• Tuning out disorder-induced localization in nanophotonic cavity arrays
• Measurement of the linear thermo-optical coefficient of Ga${}_{0.51}$In${}_{0.49}$P using photonic crystal nanocavities
• Ultrafast perturbation maps as a quantitative tool for testing of multi-port photonic devices
• Adaptive control of necklace states in a photonic crystal waveguide
• Thermo-optical dynamics of a nonlinear GaInP photonic crystal nanocavity depend on the optical mode profile