Bloch-mode extraction from near-field data in periodic waveguides

Abstract

We demonstrate that the spatial profiles of both propagating and evanescent Bloch-modes in a periodic structure can be extracted from a single measurement of electric field at the specified optical wavelength. We develop a systematic extraction procedure by extending the concepts of high-resolution spectral methods previously developed for temporal data series to take into account the symmetry properties of Bloch-modes simultaneously at all spatial locations. We apply our method to a photonic crystal waveguide interface and confirm its robustness in the presence of noise.

3 pages, 3 figures

References in corpus (1)

• Dispersion extraction with near-field measurements in periodic waveguides

Cited by in corpus (4)

• Bloch-mode analysis for retrieving effective parameters of metamaterials
• Photonic-Crystal Waveguides with Disorder: Measurement of a Band-Edge Tail in the Density of States
• A flexible Bloch mode method for computing complex band structures and impedances of two-dimensional photonic crystals
• Extraction of optical Bloch modes in a photonic-crystal waveguide