激光驱动的高流量源连贯的准单色极紫外线辐射,用于巧合光谱学
Julian Späthe1, Sebastian Hell1, Martin Wünsche1,2,3
1Institute of Optics and Quantum Electronics, Friedrich Schiller University Jena, 07743 Jena, Germany.
The Review of scientific instruments
|December 8, 2025
概括
我们开发了一种新的极端紫外线 (XUV) 辐射源,使用高波生成. 这种高流量连贯的XUV源使得先进的探头实验能够研究原子和分子过程.
科学领域:
- 量子光学是一种量子光学.
- 原子物理 原子物理
- 超快速科学 超快速科学
背景情况:
- 一致的极紫外 (XUV) 辐射源对于探测原子和分子中的超快动态至关重要.
- 现有的光源往往缺乏足够的流量或连贯性,以实现先进的光谱技术.
- 高生成 (HHG) 提供了一个有前途的途径来产生XUV辐射.
研究的目的:
- 开发和描述一种新的,高流量,连贯的XUV辐射源.
- 为了证明这种来源对巧合光谱学和探头实验的有用性.
- 为了在原子尺度上对光物质相互作用进行新的研究.
主要方法:
- 在气中产生高波.
- 使用频率翻倍的100 kHz重复率光纤激光器 (在515 nm时30 fs脉冲) 进行送.
- 使用光学成像,光电子光谱学和巧合光谱学进行表征.
- 使用涂层XUV镜子进行准单色化.
主要成果:
- 产生连贯的XUV辐射,其流量为每秒10^13光子,电压为26.5 eV.
- 在中观察了两光子双离子,证实了高脉冲强度.
- 成功演示了使用XUV和可见激光脉冲的探头实验.
- 对XUV光源属性的表征.
结论:
- 开发的XUV源提供了高流程的连贯辐射,适用于先进的光谱学.
- 该源可以对电子离子巧合测量的详细研究.
- 探头实验的能力为研究超快现象开辟了新的途径.
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