强激光毁伤过程的热辐射谱测量  

Thermal radiation spectral measurement of intense laser damage

作　　者：蔡红星[1] 胡馨月[1] 李昌立[1] 谭勇[1] 徐立君[1] 毕娟[1] 张喜和[1] 

机构地区：[1]长春理工大学理学院,吉林长春130022

出　　处：《中国光学》2012年第3期277-282,共6页Chinese Optics

基　　金：国家科技攻关计划资助项目(No.2007BA107A00-1)

摘　　要：以热辐射谱的温度反演为例,介绍了光谱技术在强激光毁伤过程中的应用。利用自制的高速光谱测量系统,实时采集了毁伤过程中的辐射光谱,基于普朗克黑体辐射原理,反演了毁伤区的温度,并应用主成分回归算法,计算得到了毁伤区的温度分布,实现了强激光辐照靶材过程中瞬态温度和温度分布的测量。光谱测量区在200～1 000 nm时,所对应的温度反演为700～6 000℃。The applications of spectral technologies in intense laser damage are introduced by taking the temperature retrievals of thermal radiation spectra for example.A self-made high speed spectrum measurement system is used to collect radiation spectra for intense laser damage in real-time.The damage zone temperature is obtained through the temperature retrieval based on the principle of Planck′s black body radiation,and the temperature distribution of a damage zone is calculated by using the principal component regression.The measurements of transient temperature and temperature distribution for intense laser irradiating targets are realized,and the spectral range is 200-1 000 nm corresponding to the temperature retrieval range for 700-6 000 ℃.

关 键 词：光谱技术 热辐射谱 激光毁伤 瞬态温度 温度反演 

分 类 号：TN241[电子电信—物理电子学] O433.1[机械工程—光学工程]