Study on the three-dimensional theory of super thin multi-layered films irradiated by the continuously modulated laser

Abstract

On the basis of heat conduction equations and under special boundary conditions,the temperatute fields of multilayered heated uniaxial films can be acquired in the cylindrical coordinate system by Hankel transformation and retransformation.As an example with specific parameters,the special growth conditions for three-layered films are discussed.The larger are the lognitudinal heat conductions vs transverse ones of thin films for higher thermal diffusivity,the larger are chan ges of phases of the temperature fields in the thin films.However,it is faintly influencing for the lognitudinal heat conductions vs transverse ones of thin fil ms for lower thermal diffusivity,and the smaller is light absorbing coefficient, the more evident is the influence on phases because of frequency change.