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从理论和实验两方面讨论了外泵浦场存在时四能级模型的饱和吸收体激发态简并四波混频过程,结果显示外泵浦场强对激发四波混频信号强度有较大的影响,在外场由小到大的变化过程中,信号强度经历一个由小到大再到小的过程.
From the theoretical and experimental aspects, the four-level model of the saturated absorber excited state degenerate four-wave mixing process in the presence of an external pump field is discussed. The results show that the external pump field strength has a greater effect on the exciting four-wave mixing signal intensity In the process of changing from small to large in the field, the signal strength goes through a process from small to large to small.