中文摘要：

在经典理论模型的基础上，利用经典牛顿力学的MONTE．CARLO法，通过解牛顿方程，从理论上研究氢原子在激光场中的经典动力学轨迹。研究发现，线偏振激光场下，电子在脉冲作用下吸收能量在大约一个光学周期后发生电离，电子最终出射的方向受激光场脉冲的影响。当总的激光脉冲周期TD=4T（T为一个光学周期）时，电子向同一个方向出射；当TD=5T时，电子向两边出射；改变激光脉冲的载波包络相位（CEP），电子的出射轨迹也发生改变。

英文摘要：

On the basis of the classical theory model, using the classical Newtonian mechanics Monte- Carlo method,the classical dynamics trajectory of hydrogen atoms was studied in laser field theoretically by solving the Newton equation.Through the studies it was found that, electrons were ionized from nucleus at about one optical period with absorbing energy from linearly polarized laser field, the direction of the ionized electron was affected by laser field.Electrons emit to the same side with the optical periodTo = 4T （ Tis the optical period）.However, electrons emit to two sides with the optical period TD = ST. Besides, from this investigation, it was also found that the trajectory of ionized electrons change correspondingly when the carrier- envelope phase（CEP） of laser fields was changed.