紧的实现所有阿托秒探针光谱学
Martin Kretschmar1, Evaldas Svirplys1, Mikhail Volkov1
1Max-Born-Institut, Max-Born-Strasse 2A, 12489 Berlin, Germany.
Science advances
|February 21, 2024
概括
现在可以更轻松地使用亚秒亚秒探针光谱学 (APAPS). 这项研究展示了一种紧的kHz重复率系统,用于超快速的科学,使得对基本过程的新研究成为可能.
科学领域:
- 超快速科学 超快速科学
- 一秒钟光谱检测
- 量子动力学 量子动力学是什么?
背景情况:
- 秒秒探波光谱 (APAPS) 对于研究超快现象至关重要.
- 之前的APAPS设置受到低重复率和大足迹的影响,限制了可访问性.
- 由于技术限制,APAPS的广泛采用受到阻碍.
研究的目的:
- 开发一个更易于访问和实用的APAPS系统.
- 为了实现高重复率,双色每秒光谱.
- 为了促进对基本过程的调查,在每秒的时间尺度.
主要方法:
- 使用商用激光系统,以1kHz的重复率运行.
- 在空心纤维中实现了简单的后压缩.
- 采用紧的高波生成 (HHG) 设置,具有失焦的几何形状.
- 在HHG介质中利用过渡的蓝变换来产生强烈的极紫外 (XUV) 脉冲.
主要成果:
- 在1kHz的重复率下展示了两种颜色的APAPS.
- 产生近乎隔离的每秒脉冲.
- 成功进行了一种颜色和两种颜色的XUVXUV探头实验.
- 实现了一个紧而高效的APAPS设置.
结论:
- 开发的APAPS系统显著提高了超快速科学研究的可访问性.
- 这种技术允许在极短的时间范围内进行选择性送和探测.
- 允许对以前用其他方法无法访问的基本过程进行调查.
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