指出三光子离化过程使三次谐波转换效率降低。
It is shown that the three photon ionization will be a limiting process in third-harmonic generation.
实验研究发现三次谐波的转换效率在通道范围内基本保持不变。
The conversion efficiency between the fundamental wave and the th emission is roughly constant over the length of the plasma channels.
系统输出激光携带一定负啁啾可以补偿色散，提高三次谐波的转换效率。
The negative chirp introduced by the fundamental wave can compensate partially dispersion and improve conversion efficiency.
系统输出激光携带一定负啁啾可以补偿色散，提高三次谐波的转换效率。
The negative chirp introduced by the fundamental wave can compensate partially dispersion and improve conversion efficiency.
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