通过数值求解一维短程势含时薛定谔方程,研究了不同频率激光作用下,原子的电离几率、束缚态粒子数布居和谐波辐射随激光强度的变化。结果表明,谐波次数和强度随原子电离几率的增大而增加,基态粒子数布居与电离几率之间具有反比关系,都呈现出强烈振荡的性质。结果表明,高次谐波主要是从连续态到基态的跃迁产生的。 The numerical solution of the one-dimensional short-range potential-time Schrödinger equation was used to study the atomic ionization probability, the population of bound state particles and the change of harmonic radiation with the laser intensity under the action of laser at different frequencies. The results show that the harmonic frequency and intensity increase with the increase of atomic ionization probability, and there is an inversely proportional relationship between the number of population of ground state and the ionization probability, showing a strong oscillation. The results show that the higher harmonics are mainly generated from the transition from the continuous state to the ground state.