We apply a spectrally-resolved electron interferometry technique to the measurement of the spectral phase in the vicinity of the 3s 1 3p 6 4p Fano resonance of argon. We show that it allows disentangling the phases of the two nearly-overlapping electron wavepackets corresponding to different spin–orbit final states. Using simple assumptions, it is possible to process the experimental data and numerically isolate each component in a self-consistent manner. This in turn allows reconstructing the autoionization dynamics of the dominant channel.

中文翻译：

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围绕法诺共振的自旋轨道分辨光谱相位测量

我们将光谱分辨电子干涉技术应用于氩的3s 1 3p 6 4p Fano共振附近的光谱相位的测量。我们证明了它可以解开对应于不同自旋轨道最终状态的两个几乎重叠的电子波包的相位。使用简单的假设，可以处理实验数据并以自洽的方式在数值上隔离每个组件。这进而允许重建主导通道的自电离动力学。