论文标题
时间分辨散射中光学诱导的各向异性：成像分子尺度的结构和无序培养基中的动力学通过实验和理论
Optically induced anisotropy in time-resolved scattering: Imaging molecular scale structure and dynamics in disordered media with experiment and theory
论文作者
论文摘要
时间分辨的散射实验可以以飞秒时间分辨率以分子尺度对材料进行成像。但是，在无序介质中，它们只能访问一个径向维度，从而限制了对定向结构和动态的研究。在这里，我们介绍了一个严格且实用的理论框架，用于预测和解释将光学诱导的各向异性和时间分辨散射结合的实验。使用冲动的核拉曼和氯仿和模拟的超快X射线散射实验，我们证明该框架可以准确预测和阐明这些实验的时空特征和时间特征。
Time-resolved scattering experiments enable imaging of materials at the molecular scale with femtosecond time resolution. However, in disordered media they provide access to just one radial dimension thus limiting the study of orientational structure and dynamics. Here we introduce a rigorous and practical theoretical framework for predicting and interpreting experiments combining optically induced anisotropy and time-resolved scattering. Using impulsive nuclear Raman and ultrafast X-ray scattering experiments of chloroform and simulations, we demonstrate that this framework can accurately predict and elucidate both the spatial and temporal features of these experiments.
