【摘要】 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.更多还原

【Abstract】 Excited state degenerate four-wave mixing in a four-level saturable system is treated theoretically and experimentally. The results show that the external pump feild influences intensely the intensities of the PC signals.更多还原