Signal Power in the Angular Spectrum of AgOx SuperRENS Media

Light-scattering properties of super-RENS media are examined in the angular spectrum near the objective lens of an optical data storage device. Signal distributions resulting from mark patterns below the resolution limit, at the resolution limit and above the resolution limit are analyzed in order to understand better the mechanism of super-RENS resolution enhancement. Results from a combination of scalar and vector modeling tools are compared to measurements from a dynamic spin stand. Simulations assume that the super-RENS effect is generated from a circular Ag region that follows the focused spot as the medium moves underneath it.