ABSTRACT
This article investigates numerically electron-phonon interaction and non-equilibrium energy transfer in thin metal film structures irradiated by femtosecond pulse laser. In addition, the present study uses the well-established two temperature model to examine thermal and optical characteristics for high and low laser fluences. In particular, the quantum effects are considered to determine electron-electron and electron-phonon collision frequencies. From results, at laser fluence near or above threshold fluences, it is found that the non-equilibrium between electron and phonon when the properties are considered as varying values differs significantly from that when the properties are assumed to be constant model.
