QFactor_Quasi-static

This dataset contains the numerical and analytical data supporting the study of optical resonances and quality (Q) factors in subwavelength particles. The data are generated based on a quasi-static approximation framework combined with radiative loss estimation, and are used to analyze the internal- and near-field energy storage of small particles.Specifically, the dataset includes calculated field distributions, stored electric and magnetic energy, and corresponding Q factors for metal nanoparticles and high-index dielectric particles over different multipole orders.