论文部分内容阅读
本文针对多光子过程产物信号随激光强度变化的特征,提出了一个利用测得的产物信号的激光强度依赖关系来估算多步多光子过程的激发截面的简单方法.该估算方法是从两步多光子吸收过程的动力学模型中导出的,并可以合理地推广到任意多步的多光子过程.我们用一些数值模拟计算和实验的结果进一步验证了该方法的合理性.
In this paper, a simple method to estimate the excitation cross section of multi-step multiphoton process by using the laser intensity dependence of the product signal is proposed in view of the characteristics of the product signal with the change of laser intensity. The estimation method is from two steps Photon absorption process of the kinetic model derived, and can be reasonably extended to any multi-step multi-photon process. We use some numerical simulation and experimental results to further verify the rationality of the method.