Nanoscale Optical Mode Imaging and Spectroscopy of Dielectric Metasurfaces Based on the Bound State in Continuum

• DOI: 10.1364/cleo_fs.2023.ff3c.1
• Publication Date: 2023-07-27T07:45:43Z
• Authors: Alex Boehm; Sylvain D. Gennaro; Chloe F. Doiron; Thomas E. Beechem; Michael B. Sinclair; Igal Brener; Raktim Sarma; Taisuke Ohta

We use photoemission electron microscopy for hyperspectral imaging of electromagnetic field localization in broken-symmetry III-V semiconductor metasurfaces with high selectivity to characterize complex resonant mode profiles, determine coherent interaction lengths, and corroborate FDTD simulations.