Few-cycle optical probe-pulse for investigation of relativistic laser-plasma interactions
Few-cycle optical probe-pulse for investigation of relativistic laser-plasma interactions
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DOI：
10.1063/1.4829489
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发表时间：
2013-11-04
影响因子：
4
通讯作者：
Kaluza, M. C.
中科院分区：
文献类型：
--
作者：
Schwab, M. B.;Saevert, A.;Kaluza, M. C.
介绍了一种用于研究钛宝石30太瓦激光系统驱动的激光-等离子体相互作用的几个周期的光学探测脉冲的研制。该探测器由驱动激光能量的一小部分播种，并通过填充有稀有气体的空芯光纤中的自相位调制在光谱上展宽，然后通过啁啾镜在时间上压缩到几个光学周期。本文给出了相对论电子加速实验中产生的激光驱动等离子体波的阴影图，其时间分辨率为几fs，与探测束相互作用后的光谱滤波无关。(c)2013 AIP Publishing LLC.
The development of a few-cycle optical probe-pulse for the investigation of laser-plasma interactions driven by a Ti:sapphire, 30 Terawatt (TW) laser system is described. The probe is seeded by a fraction of the driving laser's energy and is spectrally broadened via self-phase modulation in a hollow core fiber filled with a rare gas, then temporally compressed to a few optical cycles via chirped mirrors. Shadowgrams of the laser-driven plasma wave created in relativistic electron acceleration experiments are presented with few-fs temporal resolution, which is shown to be independent of post-interaction spectral filtering of the probe-beam. (c) 2013 AIP Publishing LLC.