STUDY OF THE AMBIENT OPTICAL-RECORDING DYNAMICS ON SPUTTERED INDIUM OXIDE THIN-FILMS

The dynamics of the holographic recording in indium oxide (In2O3) thin films, grown by de magnetron sputtering, using ultraviolet laser radi ation at 325 nm, is investigated. Simultaneous measurements of the rec ording efficiency and electrical conductivity changes, under ambient c onditions, prove that there is a strong relation between the two actio ns, and measurements of the recording efficiency with respect to the f ilm conductivity history and temperature provide evidence for the pres ence of two coexisting processes in the recording regime. The reported results provide essential information on the mechanism and nature of holographic recording in this material.