2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17587An analysis of the frequency-dependent scattering rate reveals signatures of the superconducting gap as well as the pseudogap in high-T_c cuprates. These features can be identified in the temperature-dependent spectral function W(omega), inverted from the optical data of the optimally-doped Bi2212 using an experimentally unambiguous method that shows the behavior of both the maxima and minima in the spectral function.4 pages, 4 figuresSuperconductivityOptical studies of charge dynamics in the optimally-doped Bi2212 and the non-superconducting cobaltate single crystalstext