Delay control in attosecond pump-probe experiments
Delay control in attosecond pump-probe experiments
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DOI：
10.1364/oe.17.021459
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发表时间：
2009-11-23
期刊：
影响因子：
3.8
通讯作者：
Chang, Zenghu
中科院分区：
文献类型：
--
作者：
Chini, Michael;Mashiko, Hiroki;Chang, Zenghu
阿秒时间分辨实验（例如阿秒条纹）中泵浦脉冲和探测脉冲之间的时间延迟通常是通过在干涉仪中分裂和重新组合两个脉冲来引入的。由于光学元件的机械振动和环境条件波动，该技术的两个臂的光路长度不稳定。我们提出了一种技术，可以抑制非常规干涉仪的不稳定性，同时使用反馈环路将时间延迟控制在 20 RMS 以内。使用该方案，测量了阿秒脉冲的条纹频谱图。 (C) 2009 美国光学学会
The time delay between the pump and probe pulses in attosecond time-resolved experiments, such as attosecond streaking, is commonly introduced by splitting and recombining the two pulses in an interferometer. This technique suffers from instability in the optical path lengths of the two arms due to mechanical vibration of the optical elements and fluctuating environmental conditions. We present a technique with which the instability of the unconventional interferometer is suppressed while at the same time the time delay is controlled to within 20 as RMS using a feedback loop. Using this scheme, the streaked spectrogram of an attosecond pulse was measured. (C) 2009 Optical Society of America