Effect of hole-shape irregularities on photonic crystal waveguides

Abstract

The effect of irregular hole shape on the spectrum and radiation losses of a photonic crystal waveguide is studied using Bloch-mode expansion. Deviations from a perfectly circular hole are characterized by a radius fluctuation amplitude and correlation angle. It is found that the parameter which determines the magnitude of the effect of disorder is the standard deviation of the hole areas. Hence, for a fixed amplitude of the radius fluctuation around the hole, those effects are strongly dependent on the correlation angle of the irregular shape. This result suggests routes to potentially improve the quality of photonic crystal structures.

3 pages, 3 figures

References in corpus (4)

• Cavity Quantum Electrodynamics with Anderson-localized Modes
• Experimental observation of strong photon localization in disordered photonic crystal waveguides
• Photonic-crystal slabs with a triangular lattice of triangular holes investigated using a guided-mode expansion method
• Electromagnetic modes of a disordered photonic crystal

Cited by in corpus (3)

• Radiative coupling of quantum dots in photonic crystal structures
• Gallium nitride L3 photonic crystal cavities with an average quality factor of 16,900 in the near infrared
• Quantifying the intrinsic amount of fabrication disorder in photonic-crystal waveguides from optical far-field intensity measurements