中文摘要：

精力交通和累积完成因为金属目标上的 femtosecond (fs ) 激光脱离被学习使用理论、试验性的方法。用有限差别方法， femtosecond 激光切除的铜目标上的精力交通特征的数字模拟被执行。银和铜的金属上的精力累积效果由放大 Ti 切除了：蓝宝石 femtosecond 激光系统然后试验性地被学习。模仿的结果证明电子和格子在脱离阶段有不同温度发展特征。电子温度严厉地增加并且当让格子到达最大的温度需要几千 femtoseconds 时，在几 femtoseconds 到达最大值。试验性的结果证明一致导致激光的周期的表面结构(PSS ) 能与适当搏动的数字和激光精力密度被形成。联合系数的电子声子在不同金属在 PSS 形成起一个重要作用。Cu 的表面涟漪是比在一样的激光精力密度下面的 Au 的那些更显著的。

英文摘要：

The energy transportation and accumulation effect for femtosecond （fs） laser ablation on metal targets were studied using both theoretical and experimental methods. Using finite difference method, numerical simulation of energy transportation characteristics on copper target ablated by femtosecond laser was performed. Energy accumulation effects on metals of silver and copper ablated by an amplified Ti： sapphire femtosecond laser system were then studied experimentally. The simulated results show that the electrons and lattices have different temperature evolvement characteristics in the ablation stage. The electron temperature increases sharply and reaches the maximum in several femtoseeonds while it needs thousands of femtoseeonds for lattice to reach the maximum temperature. The experimental results show that uniform laser-induced periodic surface structures （PSS） can be formed with the appropriate pulsed numbers and laser energy density. Electron-phonon coupling coefficient plays an important role in PSS formation in different metals. Surface ripples of Cu are more pronounced than those of Au under the same laser energy density.