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利用两束相干度可改变的飞秒脉冲光对产生的五次谐波的强度特性进行了研究 ,发现谐波信号的强度随相干程度的增大而增加 ,谐波信号的最大值相对于相干零点 (双光束相干度最大处 )是非对称的 ,从而证明了合成的激光脉冲波形变化对谐波信号的影响 .同时对谐波的受激放大理论进行了初步的实验探索和展望
The intensity characteristics of the fifth harmonic generated by the two femtosecond pulse lights whose coherence can be changed were studied. It was found that the intensity of the harmonic signal increased with the increase of the degree of coherence. The maximum value of the harmonic signal relative to the coherence The zero point (the maximum of the two-beam coherence) is asymmetric, which proves the effect of the synthesized laser pulse waveform on the harmonic signal.At the same time, a preliminary experimental exploration and prospect of the stimulated amplification theory of the harmonic wave