Improved spherical mirror multipass-cell-based interband cascade laser spectrometer for detecting ambient formaldehyde at parts per trillion by volume levels

Fang Bo; Yang Nana; Zhao Weixiong; Wang Chunhui; Zhang Weijun; Song Wei; Venables Dean S.; Chen Weidong

首页> 外文期刊>Applied optics >Improved spherical mirror multipass-cell-based interband cascade laser spectrometer for detecting ambient formaldehyde at parts per trillion by volume levels

【24h】

Improved spherical mirror multipass-cell-based interband cascade laser spectrometer for detecting ambient formaldehyde at parts per trillion by volume levels

机译：基于球形镜的基于球形镜的间带级联激光光谱仪，用于检测每万亿的甲醛的体积水平

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

We report the development of an improved spherical mirror multipass-cell-based interband cascade laser (ICL) spectrometer for ambient formaldehyde (HCHO) detection. The multipass cell consists of two easily manufactured spherical mirrors that are low cost, and have a simple structure, large mirror area utilization, and dense spot pattern. Optical interference caused by the multipath cell was largely reduced, resulting in good sensitivity. Using wavelength modulation spectroscopy (WMS), a detection precision (1 sigma) of 51 pptv in 10 s was achieved with an absorption pathlength of 96 m, which compared favorably with the performance of other state-of-theart instruments. The precision can be further improved by using a long absorption pathlength configuration and by removing fringe-like optical noise caused by the collimation lens. Ambient application of the developed spectrometer was demonstrated. (C) 2019 Optical Society of America

机译：我们报道了用于环境甲醛（HCHO）检测的改进的球形镜子多汇款电池基间带级联激光器（ICL）光谱仪。多峰电池由两个易于制造的球面镜子组成，该镜子低成本，结构简单，镜子区域利用和密集点图案。由多径细胞引起的光学干扰大大降低，导致良好的灵敏度。使用波长调制光谱（WMS），通过96米的吸收路径长度实现了10秒内的51 pptv的检测精度（1 sigma），这与其他左右仪器的性能相比有利。通过使用长的吸收路径长度配置和通过去除由准直透镜引起的条纹光学噪声，可以进一步改善精度。表现出显影光谱仪的环境应用。（c）2019年光学学会

著录项

来源
《Applied optics》 |2019年第32期|共8页
作者
Fang Bo; Yang Nana; Zhao Weixiong; Wang Chunhui; Zhang Weijun; Song Wei; Venables Dean S.; Chen Weidong;
展开▼
作者单位

Chinese Acad Sci Anhui Inst Opt &

Fine Mech Lab Atmospher Physicochem Hefei 230031 Anhui Peoples R China;

Chinese Acad Sci Anhui Inst Opt &

Fine Mech Lab Atmospher Physicochem Hefei 230031 Anhui Peoples R China;

Chinese Acad Sci Anhui Inst Opt &

Fine Mech Lab Atmospher Physicochem Hefei 230031 Anhui Peoples R China;

Chinese Acad Sci Anhui Inst Opt &

Fine Mech Lab Atmospher Physicochem Hefei 230031 Anhui Peoples R China;

Chinese Acad Sci Anhui Inst Opt &

Fine Mech Lab Atmospher Physicochem Hefei 230031 Anhui Peoples R China;

Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou 510640 Guangdong Peoples R China;

Univ Coll Cork Sch Chem Cork Ireland;

Univ Littoral Cote dOpale Lab Physicochim Atmosphere F-59140 Dunkerque France;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类应用;
关键词

Improved spherical mirror multipass-cell-based interband cascade laser spectrometer for detecting ambient formaldehyde at parts per trillion by volume levels

摘要

著录项

相关主题

期刊订阅