Experimental characterization of Spherical Bragg Resonators for electromagnetic emission engineering at microwave frequencies.

ABSTRACT: This work reports experimental investigation and numerical validation of millimeter-sized Spherical Bragg Resonators (SBRs) fabricated using 3D printing technology. The frequency dependencies of the reflection and transmission coefficients were analyzed, and eigenfrequency values were calculated to examine the density of photonic states in air/PLA-polylactide SBRs, showing the appearance of an eigenmode and an increase in the local density of states in the core of a defect cavity. A decay rate enhancement of [Formula: see text] was obtained for a dipole placed in the core of the defect SBR. The study also investigated the influence of the source position on the resonator's electromagnetic wave energy. Scattering efficiencies up to order twelve of the multipole electric and magnetic contrib

SUBMITTER: Garcia-Puente Y 

PROVIDER: S-EPMC10665359 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature