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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Role of Photophysics Processes in Thermal Lens Spectroscopy of Fluids: A Theoretical Study
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Role of Photophysics Processes in Thermal Lens Spectroscopy of Fluids: A Theoretical Study

机译:光物理过程在流体热透镜光谱中的作用:理论研究

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摘要

Photophysics processes are ubiquitous in nature and difficult to be quantitatively characterized by conventional spectroscopy. Alternatively, pump-probe methods have been widely applied to study these complex processes. In this context, the thermal lens technique is a precise spectroscopic tool for material characterization and presents a wide range of applications in chemical analysis. Here, we present an all numerical approach to analyze the dynamics of photophysics processes and to identify the role of individual contributions of photoreaction and mass diffusion in the thermal lens experiments. The results are essential for a proper understanding of the dominant physical mechanisms in laser-induced photodegradation, which allow precise data analysis of the effects in photosensitive fluids.
机译:光物理过程本质上是普遍存在的,并且难以通过常规光谱学进行定量表征。另外,泵探针方法已被广泛应用于研究这些复杂的过程。在这种情况下,热透镜技术是用于材料表征的精确光谱工具,在化学分析中具有广泛的应用。在这里,我们提出了一种全数值方法来分析光物理过程的动力学,并确定光反应和质量扩散的个体贡献在热透镜实验中的作用。这些结果对于正确理解激光诱导的光降解过程中的主要物理机制至关重要,从而可以对光敏流体中的效应进行精确的数据分析。

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