双原子分子在强红外激光场中的多光子解离理论

A DIATOMIC MOLECULE MULTIPHOTON DISSOCIATION IN INTENSE FIELDS

研究双原子分子的红外多光子解离，外场与分子的相互作用采用偶极近似，由ＣｌｏｓｅＣｏｕｐｌｉｎｇ方法，可将体系的Ｓｃｈｒｄｉｎｇｅｒ方程转化为一个矩阵方程，其中的系数矩阵具有时间周期性．因此，能够应用Ｆｌｏｑｕｅｔ理论非常有效地减少计算工作量而得到方程的解．为了给出数字结果，详细计算了ＨＦ分子的多光子解离，所用红外激光场的强度为１２５×１０１２Ｗ／ｃｍ２．

This work deals with the multiphoton dissociation of diatomic molecule.in intense IR laser field,the interaction between field and molecules is approximated to that between field and the dipoles.The Schrdinger equation is solved by using Close Coupling method and Floquet theory.Numerical results for molecule HF are given.