
第22卷
第10期
2014年10月
1004-924X(2014)10-261705
文章编号
光学精密工程
Optics and Precision Engineering
Vol.22
No.10 Oct,2014
适用于大气分子低温光谱实验的低温吸收池马宏亮1.3,孙明国2.3,曹振松",黄印博1,王贵师1,2,高晓明1,2,饶瑞中1(1.中国科学院安徽光学精密机械研究所大气成分与光学重点实验室,安徽合肥230031; 2.中国科学院安徽光学精密机械研究所大气物理化学研究室,安徽合肥230031;
3.中国科学院大学,北京100049)
摘要:设计研制了一套可控温低温吸收池装置,用于系统研究大气分子的低温光谱参数。在之前研制的低温池的基础上,对新研制的低温池的杜瓦瓶与样品池的安装方式,样品池的构造材料以及具体的制冷方法进行了改进,提高了温度稳定性和均勾性。实验显示;在0.5h监测时间内温度波动小于士0.3K,温度梯度约为0.03K/cm。基于新型低温池,结合可调谐率导体激光吸收光谱技术,开展了6358.654cm=1处二氧化碳低溢精细光谱测试,获得了二氧化碳吸收谱线
该装置可以满足大气分子低溢光谱实验的需要。
关键调:低温吸收池;低温光谱参数;大气分子;二氧化碳;温度相关;吸收光谱仪
中图分类号0433.5;0657.3
文献标识码:A
doi;10,3788/OPE,20142210.2617
Cryogeniccellforlow-temperaturespectralexperimentsof
atmospheric molecules
MA Hong-liangl-3,SUN Ming-guo'-3, CAO Zhen-song',
HUANG Yin-bo', WANG Gui-shil?, GAO Xiao-ming'-,RAO Rui-zhong'
(l.KeyLaboratoryof AtmosphericCompositionandOpticalRadiation,AnhuiInstituteof
Optics&FineMechanics,ChineseAcademy ofSciences,Hefei 230031,China 2.Laboratory of Atmospheric Physico-Chemistry,Anhui Institute of Optics&
Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China; 3.Universityof ChineseAcademy of Sciences,Beijing100049,China)
*Correspondingauthor,E-mail:rao@aiofm.ac.cn
Abstract: A new controllable cryogenic cell is designed to provide very useful low temperature spectro scopic parameters for a laser atmospheric transmission project and trace gas detection. On the basis of the existing low temperature cryogenic cell, the new developed cryogenic cell improves the installation of a dewar and a sample cell, cell sample materials and concrete cooling method, and increases temper ature stability and uniformity of the cell. The experimental results indicate that the new cryogenic cell shows its temperature fluctuations to be less than ±0. 3 K in monitoring time of o. 5 h and the temper
收稿日期:2013-10-22修订日期:2013-11-16.
基金项目:国家自然科学基金青年基金资助项目(No.41205021)