Accurate Measurement of Raman Depolarization Ratio in Gaseous CO2  

气相二氧化碳分子托曼退偏比的准确测量

作　　者：靳玉娟[1] 喻远琴[1] 王钰熙 林珂[2] 周晓国[2] 刘世林[2] 

机构地区：[1]安徽大学物理与材料科学学院,合肥230039 [2]中国科学技术大学合肥微尺度物质科学国家实验室、化学物理,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2015年第1期17-20,I0001,共5页化学物理学报（英文）

基　　金：This work was supported by the National Natural Sci- ence Foundation of China （No.20903002, No.21273211, No.9112T042, and No.21373194） and the Anhui Provin- cial Natural Science Foundation （No.1408085MA18）, and the National Key Basic Research Special Founda- tion （No.2013CB834602 and No.2010CB923300）.

摘　　要：The Raman depolarization ratios of gaseous CO2 in the spectral range of 1240-1430 cm-I are determined with a sensitive photoacoustic Raman spectroscopy, and more accurate data compared to the literature results are presented. The precision of the obtained depolarization ratio is achieved by measuring and fitting the dependence of the PARS signal intensity on the cross angle between the polarizations of two incident laser beams.

关 键 词：Depolarization ratio Accurate measurement Photoacoustic Raman spec-troscopy Global fitting 

分 类 号：O[理学]