Ultrafast dynamic evolution of multilevel systems in medium-strength laser fields
作者： Zuoye Liu , Bitao Hu , Zhenhao Wang , Quanjun Wang , Jingjie Ding
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摘要: The ultrafast dynamic evolution of an atomic system under medium-strength laser fields is studied by performing transient absorption measurement. An analytical model developed from perturbation theory with a modified transition dipole moment presented to explain the spectral features multilevel system. By fitting measured spectra model, system's quantified different amplitude and phase modulation factors in pump-probe probe-pump scenarios. This study provides way understand laser-matter interaction area between strong-field weak-field regimes.
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