温度和压力对Au反射特性影响及动高压下的测温应用分析
张永强;莫建军;陶彦辉;谭福利
【期刊名称】《强激光与粒子束》 【年(卷),期】2017(029)009
【摘要】Based on metal electron gas model, the studies and analysis on the effect of temperature and pressure on gold reflectance characteristics changes were done.The experiments of pressure effect on gold reflectivity characteristics under 488 nm wavelength laser by DAC setup and those of temperature effect under high energy laser which supplies dynamic temperature rise were also done, the reflectance characteristics changes were obtained in 11 GPa pressure range and room temperature to 350 ℃ temperature range.The results show that the pressure effect comparing with temperature effect on reflectivity is negligible, the reflectivity is monotonely increasing and up to 10% increase, there is a one-to-one correspondence between reflectivity and temperature.Through the requirement analysis of temperature measurement in dynamic high pressure condition, the measurement method of material transient temperature can be established by gold reflectivity change under 488 nm wavelength laser in lower temperature (<1000 K) section of dynamic high pressure loading.%基于金属电子气模型,进行了温度、压力对Au反射率变化影响的研究与分析.利用DAC装置开展了压力对Au反射率变化测量实验,以及激光加热
温度和压力对Au反射特性影响及动高压下的测温应用分析
