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首页> 外文期刊>new journal of physics >Coherent control of extreme ultraviolet emission generated through frustrated tunneling ionization
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Coherent control of extreme ultraviolet emission generated through frustrated tunneling ionization

机译：对受挫隧穿电离产生的极端紫外发射进行相干控制

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Coherent extreme ultraviolet (EUV) line emissions can be generated from an atom excited through frustrated tunneling ionization (FTI). The phase variation of the EUV emission in a generation medium along the propagation direction is a critical parameter that determines the phase-matching condition of this new light source. Here we show that the EUV emission sensitively depends on the intensity and phase of a driving laser pulse and the target position. Angle-resolved EUV spectra measured at different target positions and the carrier-envelope phases of the laser pulse exhibit an intensity modulation, showing similar behavior to that of a long-trajectory high harmonic radiation. The four-step model developed for the FTI emission accurately describes the coherent control of the EUV emission. These findings are essential ingredients for developing coherent extreme ultraviolet sources with high photon flux and for utilizing the FTI emission in time-resolved spectroscopy.
机译：相干极紫外 （EUV） 谱线发射可以由通过受挫隧穿电离 （FTI） 激发的原子产生。EUV发射在生成介质中沿传播方向的相位变化是决定这种新光源相位匹配条件的关键参数。在这里，我们表明 EUV 发射灵敏地取决于驱动激光脉冲的强度和相位以及目标位置。在不同目标位置和激光脉冲的载波包络相位测量的角度分辨EUV光谱表现出强度调制，显示出与长轨迹高谐波辐射相似的行为。为FTI发射开发的四步模型准确地描述了EUV发射的相干控制。这些发现是开发具有高光子通量的相干极紫外光源和在时间分辨光谱学中利用FTI发射的基本要素。

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