论文标题
高脉冲强度和鸣叫在原子蒸气的二维电子光谱中的影响
Effects of high pulse intensity and chirp in two-dimensional electronic spectroscopy of an atomic vapor
论文作者
论文摘要
高脉冲强度和鸣叫对二维电子光谱信号的影响，在高度非扰动性方案中使用原子rubidium Vapor作为清洁模型系统进行了实验研究。数据分析是基于高阶Feynman图和系统响应的非扰动数值模拟进行的。结果表明，高阶贡献可能会导致静态外观和2D光谱的跳动图的根本变化，并且刺耳的脉冲可以增强或抑制不同的高阶途径。我们进一步估算了阈值强度，除了在考虑的系统中可见高强度的效果。
The effects of high pulse intensity and chirp on two-dimensional electronic spectroscopy signals are experimentally investigated in the highly non-perturbative regime using atomic rubidium vapor as clean model system. Data analysis is performed based on higher-order Feynman diagrams and non-perturbative numerical simulations of the system response. It is shown that higher-order contributions may lead to a fundamental change of the static appearance and beating-maps of the 2D spectra and that chirped pulses enhance or suppress distinct higher-order pathways. We further give an estimate of the threshold intensity beyond which the high-intensity effects become visible for the system under consideration.
