类粒子电荷迁移动力学的高次谐波边带谱表征
Characterizing Particle-Like Charge Migration Dynamics with High-Harmonic Sideband Spectroscopy
摘要：
我们介绍了高次谐波边带光谱（HHSS），并表明它可以是一个强大的探针阿秒电荷迁移（CM）在卤代碳链分子。我们使用从头算含时密度泛函理论模拟CM和谐波产生（HHG）动力学。我们发现，CM动力学沿分子骨架引发的HHG光谱中的边带由延迟的激光脉冲，偏振垂直于分子轴驱动。在扫描HHG激光频率或相对延迟时监测光谱允许提取关于CM过程的时域特性的详细信息。
英文摘要：
We introduce high-harmonic sideband spectroscopy (HHSS) and show that it can be a robust probe of attosecond charge migration (CM) in a halogenated carbon-chain molecule. We simulate both the CM and harmonic-generation (HHG) dynamics using ab initio time-dependent density-functional theory. We find that CM dynamics initiated along the molecular backbone induces sidebands in the HHG spectrum driven by a delayed laser pulse that is polarized perpendicular to the molecular axis. Monitoring the spectrum as either the HHG laser frequency or the relative delay is scanned allows for the extraction of detailed information about the time-domain characteristics of the CM process.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
