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题名:
Extinction measurement with open-path cavity ring-down technique of variable cavity length
作者: Cui, Hao1,2; Li, Bincheng1,2; Han, Yanling2; Wang, Jing1; Gao, Chunming1; Wang, Yafei1
刊名: OPTICS EXPRESS
出版日期: 2016-06-13
卷号: 24, 期号:12, 页码:13343-13350
DOI: 10.1364/OE.24.013343
文章类型: Article
英文摘要: Open-path cavity ring down (OPCRD) technique with variable cavity length was developed to measure optical extinction including scattering and absorption of air in laboratory environment at 635 nm wavelength. By moving the rear cavity mirror of the ring-down cavity to change cavity length, ring-down time with different cavity lengths was experimentally obtained and the dependence of total cavity loss on cavity length was determined. The extinction coefficient of air was determined by the slope of linear dependence of total cavity loss on cavity length. The extinction coefficients of air with different particle concentrations at 635 nm wavelength were measured to be from 10.46 to 84.19 Mm(-1) (ppm/m) in a normal laboratory environment. This variable-cavity-length OPCRD technique can be used for absolute extinction measurement and real-time environmental monitoring without closed-path sample cells and background measurements. (C)2016 Optical Society of America
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: OPTICAL EXTINCTION ; TRACE GASES ; SPECTROSCOPY ; AEROSOL ; SPECTROMETER ; AIR ; NO3
收录类别: SCI
语种: 英语
WOS记录号: WOS:000378298400086
ISSN号: 1094-4087
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3913
Appears in Collections:资管处_期刊论文

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作者单位: 1.Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, POB 350, Chengdu 610209, Peoples R China

Recommended Citation:
Cui, Hao,Li, Bincheng,Han, Yanling,et al. Extinction measurement with open-path cavity ring-down technique of variable cavity length[J]. OPTICS EXPRESS,2016,24(12):13343-13350.
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