Modeling of time-dependent temperature profiles in multilayer optical storage media.

A computer model has been developed to calculate the heat input through multilayered optical storage media. This is combined with a finite element calculation to determine the time-dependent temperature profiles through the layers. A series of calculations are presented on a number of different layer structures and materials in an attempt to optimize the storage medium. It is shown that the efficiency of heat absorption and the resulting temperature profiles are critically dependent on layer thicknesses.