Recent research progress of laser plasma interactions in Shenguang laser facilities
Recent research progress of laser plasma interactions in Shenguang laser facilities
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神光激光装置激光等离子体相互作用研究进展
DOI：
10.1063/1.5092446
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发表时间：
2019-07
影响因子：
5.1
通讯作者：
Yongkun Ding
中科院分区：
文献类型：
--
作者：
Tao Gong;Liang Hao;Zhichao Li;Dong Yang;Yongkun Ding
我们报告了过去十年在神光激光装置中进行的激光等离子体相互作用（LPI）的实验研究。该研究一般分为三个阶段：（1）开发有限驱动能量的毫米级等离子体LPI研究平台，对气囊和充气黑腔靶进行测试； (2)研究连续相位板、偏振平滑等光束平滑技术对LPI抑制的效果； (3)探讨了集成内爆实验中影响LPI的因素，包括激光强度、气体填充压力、激光入口孔的尺寸以及不同光束锥之间的相互作用。每个阶段获得的结果将被详细介绍和讨论。我们报告了过去十年在神光激光装置中进行的激光等离子体相互作用（LPI）的实验研究。该研究一般分为三个阶段：（1）开发有限驱动能量的毫米级等离子体LPI研究平台，对气囊和充气黑腔靶进行测试； (2)研究连续相位板、偏振平滑等光束平滑技术对LPI抑制的效果； (3)探讨了集成内爆实验中影响LPI的因素，包括激光强度、气体填充压力、激光入口孔的尺寸以及不同光束锥之间的相互作用。每个阶段获得的结果将被详细介绍和讨论。
We report experimental research on laser plasma interaction (LPI) conducted in Shenguang laser facilities during the past ten years. The research generally consists of three phases: (1) developing platforms for LPI research in mm-scale plasma with limited drive energy, where both gasbag and gas-filled hohlraum targets are tested; (2) studying the effects of beam-smoothing techniques, such as continuous phase plate and polarization smoothing, on the suppression of LPI; and (3) exploring the factors affecting LPI in integrated implosion experiments, which include the laser intensity, gas-fill pressure, size of the laser-entrance hole, and interplay between different beam cones. Results obtained in each phase will be presented and discussed in detail.We report experimental research on laser plasma interaction (LPI) conducted in Shenguang laser facilities during the past ten years. The research generally consists of three phases: (1) developing platforms for LPI research in mm-scale plasma with limited drive energy, where both gasbag and gas-filled hohlraum targets are tested; (2) studying the effects of beam-smoothing techniques, such as continuous phase plate and polarization smoothing, on the suppression of LPI; and (3) exploring the factors affecting LPI in integrated implosion experiments, which include the laser intensity, gas-fill pressure, size of the laser-entrance hole, and interplay between different beam cones. Results obtained in each phase will be presented and discussed in detail.
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