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文摘
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作为重要的大气污染物,CO气体浓度的变化是衡量大气污染状况的重要指标。针对大气污染组分CO高灵敏红外光谱测量需要,研究了高分辨红外光谱特性参数精确测定方法,采用室温工作、窄线宽分布反馈式(DFB)半导体激光器作为检测光源,精确测量了CO气体在1.56 μm附近的高分辨吸收光谱,利用Voigt线形模型对吸收谱线进行拟合,获取了CO分子各吸收线的中心波长、谱线强度、压力自加宽系数等参量,并与理论结果进行了比较。 |
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其他语种文摘
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As one of the main air pollutants, the concentration change of carbon monoxide is the important indicator of air quality. For the need of high sensitive infrared spectroscopy detection on CO, which is one of the most important atmospheric pollution components, the characteristics of high resolution absorption spectroscopy detection method are studied, and the high resolution absorption spectra of CO near 1.56 μm are recorded accurately by using a distributed feed-back (DFB) diode laser, which has narrow line width and works at room temperature as light source. The Voigt profile model is used for absorption spectral lines fitting, and the center wavelengths, line intensities and self-broadening coefficients of CO lines are precisely measured and compared with theoretical results. |
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来源
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激光与光电子学进展
,2015,52(11):113004-1-113004-6 【核心库】
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DOI
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10.3788/LOP52.113004
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关键词
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激光光学
;
近红外光谱
;
线宽
;
线强
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地址
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1.
合肥工业大学仪器科学与光电工程学院, 安徽, 合肥, 230009
2.
中国科学院安徽光学精密机械研究所, 安徽, 合肥, 230031
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1006-4125 |
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学科
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物理学 |
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基金
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国家重大科学仪器设备开发专项
;
安徽省自然科学基金
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文献收藏号
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CSCD:5600882
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