PARAMETER EFFECTS ON TEMPERATURES IN THE THIN FILM IRRADIATED BY ULTRAFAST-PULSE LASER
The effects of parameters on temperatures in thin metal films heated by ultrafast-pulse laser are investigated in this paper. The time scale in which energy transfers from the electrons to lattice is on the order of a picosecond for metals. Therefore when the duration of ultrafast-pulse laser heating metal films is on the order of or shorter than a picosecond, a substantial nonequilibrium can occur between the electron and lattice temperature and the metal lattices stay almost thermally undisturbed in this highly nonequilibrium regime. A parabolic two-temperature heating model is employed to investigate thermal transport in thin metal films irradiated by ultrafast-pulse laser. Using the Laplace transform and assuming the thermal properties to be independent of temperature, a closed form solution of temperature in the thin film is provided. The effects of laser parameters and material properties on temperatures are also discussed.
Temperature ultrafast-pulse laser
CHING-YEN HO MAO-YU WEN CHIA-SHENG SHIH
Department of Mechanical Engineering, Hwa Hsia Institute of Technology, No.111, Gong Jhuan Rd., Chun Department of Mechanical Engineering, Cheng Shiu University, Kaohsiung 833, Taiwan
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1962-1967
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）