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首页> 外文会议>The International Conference on Laser Physics and Quantum Optics was held in Shanghai, China, from August 25 to August 28, 1999 >Aspect of harmonic Generation from Solid Surface Plasma by Using Picosecond Laser
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Aspect of harmonic Generation from Solid Surface Plasma by Using Picosecond Laser

机译：使用皮秒激光从固体表面等离子体产生谐波的方面

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摘要

Investigations have been performed on harmonic generation from solid-vacuum interfaces using a prepulse-free 2.2 ps, 1054 nm laser at maximum intensities of ~ 2 x 10~17W cm~-2. We observed, for the first time, that the divergence of harmonics decreases as the order of the harmonic increases when irradiated at the same pump intensity. We also measured that the third harmonics emission is more specular when using a shorter pulse. The harmonic intensities were stronger for p-polarized pump than s-polarized pumps. It has been found that the conversion efficiency of higher harmonic decreases graddually.
机译：已经使用无脉冲的2.2 ps，1054 nm激光在最大强度为〜2 x 10〜17W cm〜-2的情况下对固体-真空界面产生的谐波进行了研究。我们首次观察到，当以相同的泵浦强度照射时，谐波的发散度随谐波次数的增加而减小。我们还测量到，当使用较短的脉冲时，三次谐波的发射更为镜面反射。 P极化泵的谐波强度比S极化泵强。已经发现，高次谐波的转换效率逐渐降低。

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