1.053μm激光照射金平面靶产生的散射光谱实验研究
EXPERIMENTAL STUDY ON TIMEINTEGRATED SPECTRUM OF LIGHT OF AuDISK IRRADIATED BY 1.053μm LASER
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摘要: 测量了1.053μm激光照射金平面靶时产生的3ω0/2谐波散射光的时间积分谱,由红移峰和蓝移峰的波长推算出双等离子体衰变区域的电子温度以及nc/4 区域的等离子体膨胀速度,即离子声速。实验结果和不稳定性饱和机制预言的结果有良好的自洽性。Abstract: Timeintegrated spectrum of 3ω0/2 light in plasma produced by 1.053μm laser irradiating on Audisk is shown in this paper. Based on the measurement of redshifted p eak and blueshifted peak. The temperature of electron in interacti on region and the plasma expansion speed in onequarter critical electron density layer are obtained. The experiment results agree well with nonlinear saturation theory of Two PlasmonDecay.
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Key words:
- laser produced plasma /
- tpd /
- red shifted peak /
- blue shifted peak /
- ion acoustic speed /
- relaxing time /
- critical density
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