论文标题
自动离子化状态的Attosend瞬时吸收中的多极性控制
Multi-polariton control in attosecond transient absorption of autoionizing states
论文作者
论文摘要
可调节的Attosent瞬时吸收光谱是研究和操纵连续体中自由化动力学的理想工具。我们研究了明亮的3s^-1 4p和深色3S^-1 4F自动取代状态之间的近谐振两光子耦合，这些状态会导致诸如相互作用，形成纠缠的光晶状体或极性状态等自动镇。我们观察到，具有中间暗状态的单光子耦合在这种相互作用中起着重要作用，导致形成多个极性分支，其能量表现出避免的横梁，这是敷料激光频率的函数。我们的实验测量和理论基本状态模拟显示出良好的一致性，并揭示了敷料脉冲的延迟，频率和强度如何控制自动化极化元多数的特性。这些结果证明了用光场自动取代状态的量子控制的新途径。
Tunable attosecond transient absorption spectroscopy is an ideal tool for studying and manipulating autoionization dynamics in the continuum. We investigate near-resonant two-photon couplings between the bright 3s^-1 4p and dark 3s^-1 4f autoionizing states of argon that lead to Autler-Townes like interactions, forming entangled light-matter states, or polaritons. We observe that one-photon couplings with intermediate dark states play an important role in this interaction, leading to the formation of multiple polaritonic branches whose energies exhibit avoided crossings as a function of the dressing-laser frequency. Our experimental measurements and theoretical essential-state simulations show good agreement and reveal how the delay, frequency, and intensity of the dressing pulse govern the properties of autoionizing polariton multiplets. These results demonstrate new pathways for quantum control of autoionizing states with optical fields.
