Functional Structures of AgOx Thin Film for Near-Field Recording

The optical processes of the AgOx thin film under various laser pumping pulses are studied using an optical pump-probe system. Detailed changes of the reflectance measurements clearly show the different transition process of the dissociation of the AgOx thin film. The structures of dots and rings of written spots are observed in these processes. Two possible models of the distribution of the dissociated silver are proposed.