论文标题
在不对称的快速振荡的阈值电离频谱中,解决的沮丧的隧道电离在不对称的快速振荡中
Resolved frustrated tunneling ionization in asymmetrical fast oscillation of above-threshold ionization spectrum
论文作者
论文摘要
隧道电离是基本电子动力学之一,在超快物理学中具有广泛的应用。当考虑沮丧的隧穿电离(FTI)时,隧道速率不等于电离速率。但是,很难在实验上解决电离频谱中FTI和直接隧穿电离(DTI)的影响。在这里,我们最好地报告了氩气(ATI)谱的不对称快速振荡(ATI)作为载体 - Envelope阶段(CEP)的函数的首次观察。仿真结果确定在实验ATI频谱中,π/5振荡起源于电子在FTI中的量子干扰,而DTI负责不对称。我们的结果提供了明确的证据,以解决新的物理制度中直接隧穿和FTI的影响。
Tunneling ionization is one of the fundamental electron dynamics, which has wide applications in ultrafast physics. When frustrated tunneling ionization (FTI) is considered, the tunneling rate is not equivalent to ionization rate. However, it is hard to resolve the effects of FTI and direct tunneling ionization (DTI) in ionization spectrum experimentally. Here we report the first observation of the asymmetrical fast oscillation in above-threshold ionization (ATI) spectrum of Argon as function of carrier-envelope phase (CEP), to the best of our knowledge. Simulation results identify that in the experimental ATI spectrum, the π/5 oscillation originates from the quantum interference of electrons in FTI, while DTI is responsible for the asymmetry. Our results provide clear evidence to resolve the effects of direct tunneling and FTI in a new physical regime.