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提出了通过控制双激光脉冲宽度的方法来提高N2分子取向程度.利用数值方法求解了N2分子刚性转子模型在双激光脉冲作用下的薛定谔方程,计算了双原子分子N2在总强度固定的两束激光脉冲作用下,不同脉冲宽度对于N2分子取向的影响.研究结果表明,通过调整两束激光脉冲的宽度,选择合适的延迟时间能够有效提高N2分子的取向程度.
We propose a method to increase the orientation of N2 molecules by controlling the pulse width of double laser.The numerical solution of the Schrodinger equation for the N2 molecular rigid rotor model under the action of double laser pulses is given.The results show that N2 The effect of different pulse widths on the molecular orientation of N2 under laser pulse is studied.The results show that by adjusting the width of two laser pulses and choosing the appropriate delay time, the orientation degree of N2 molecules can be effectively increased.