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Updated: Jul 22, 2025

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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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概括
研究人员使用峰值电容器在He/Ar等离子体中实现了高转移稳定的气密度. 这一进步对于开发高能耗应用的高效光变态稳定稀有气体激光器 (OPRGL) 至关重要.
科学领域:
- 血物理学的等离子体物理学
- 激光技术 激光技术 激光技术
- 原子和分子物理学 原子和分子物理学
背景情况:
- 光学转稳定稀有气体激光器 (OPRGL) 对高能耗应用具有前景.
- 实现高元稳密度对于高效的OPRGL运行至关重要.
- 在大气压下产生大容量,高元稳定密度等离子体仍然是一个挑战.
研究的目的:
- 在近大气压下产生大体积的He/Ar等离子体,具有高的转移稳定的气密度.
- 为了研究使用峰值电容器来增强元稳密度.
- 为了验证所获得的元稳密度及其对激光性能的影响.
主要方法:
- 利用电极附近的峰值电容器来创建900mBar的He/Ar等离子体.
- 采用吸收光谱技术,采用772.38nm的探针束来测量转移稳定的子密度.
- 使用激光诱导的光和观察到的激光振荡来验证结果.
主要成果:
- 在900 mBar时产生0.8 cm3 He/Ar等离子体,其峰值转移稳定的气密度超过1014 cm−3.3.
- 吸收光谱证实了400-900 mbar的压力范围内的高元稳定密度.
- 100mW的激光振荡是通过短增长长 (8mm) 实现的.
结论:
- 峰值电容器在接近大气压力时有效地在He/Ar等离子体中产生高的转移稳定密度.
- 实现的高转移稳定密度适用于高效的光转移稳定稀有气体激光器.
- 这种方法为开发实用的高能OPRGL系统提供了可行的途径.
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