文摘
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The absolute absorption spectrum intensities of carbon dioxide samples has been recorded with a tunable diode laser spectrometer in the spectral range 6350--6364cm-1, which is suitable for the in-situ sensing of carbon dioxide in the lower stratosphere studied using a commercial telecommunication-type diode laser. It was found that the typical uncertainty of experimental line intensities is about 1% compared with the values listed in the HITRAN database, which are calculated by direct numerical diagonalization. The intensity of the weakest line we detected in this experiment is 1.116×10-26cm-1/(molecule.cm-2) at the pressure of 0.5 Torr, and the corresponding absorption is 3.2×10-6 with SNR of 4.53. |
来源
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Chinese Physics Letters
,2005,22(1):57-60 【核心库】
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DOI
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10.1088/0256-307x/22/1/017
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关键词
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可调二极管激光器
;
吸收光谱
;
二氧化碳
;
分光计
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地址
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1.
Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Laboratory of Atmospheric Optics, CAS, 安徽, Hefei, 230031
2.
Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Environmental Spectroscopy Laboratory, CAS, 安徽, Hefei, 230031
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语种
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英文 |
文献类型
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研究性论文 |
ISSN
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0256-307X |
学科
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物理学 |
基金
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国家863计划
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文献收藏号
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CSCD:1877081
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