气炮加载实验中拉曼光谱技术的发展及应用

拉曼光谱技术已经成为静高压实验中诊断物质微观结构的重要手段之一。本文主要综述拉曼光谱技术在动态加载实验中的发展及应用现状。拉曼光谱技术和气炮加载技术相结合,由于采集信号时间短、杂散光强等,其技术难度比较大。迄今,仅有少数几个气炮加载实验室具备冲击拉曼光谱诊断能力。本文首先介绍了气炮加载拉曼光谱技术的发展历程,然后通过对现有文献的分析,总结出当前该技术的瓶颈。最后陈述了拉曼光谱在研究动态加载过程中透明介质微观结构变化方面的优势。

Development and Application of Raman Spectroscopy in Gas-gun Loading Experiment

Raman spectroscopy has become one of the important means to probe the microscopic structure of matter in static high-pressure experiment.This paper reviewed the development and application of Raman spectroscopy during dynamic loading experiment.Because of the short signal acquisition time and the high intensity of stray light,its technology difficulty is large for the Raman spectroscopy and the gas gun combination technique.So far,only a few gas-gun loading laboratories in the world have been succeeded in such technique.This paper firstly introduces the development history of the gas-gun combined with Raman spectroscopy technique.Then it shows the difficulties which faced by analysizing the existing literature.And it states the advantages of Raman spectroscopy in studying the microscopic structure changes of transparent matter in dynamic loading experiment.