Applying CEAS method to UV, VIS, and IR spectroscopy sensors

Bulletin of the Polish Academy of Sciences. Technical Sciences

J. MikolajczykInstitute of Optoelectronics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  J. WojtasInstitute of Optoelectronics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  B. RuteckaInstitute of Optoelectronics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Z. BieleckiInstitute of Optoelectronics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  M. NowakowskiInstitute of Optoelectronics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  R. MedrzyckiInstitute of Optoelectronics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Institute of Optoelectronics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, Poland

关键词: Keywords: CEAS;    N2O;    NO;    NO2 detection;    optoelectronic sensor;   

DOI  :  10.2478/v10175-011-0050-x

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

In the paper, several applications of Cavity Enhanced Absorption Spectroscopy (CEAS) for trace mater detection are described. NO2 sensor was constructed using this technique with blue-violet lasers (395-440 nm). The sensor sensitivity reaches the level of single ppb and it was applied in security portal. For detection of two gases at the same time, two-channel sensor was constructed. Used method allows a significant reduction in the cost of optoelectronic CEAS sensor designed to measure of concentrations of many gases simultaneously. Successful monitoring of N2O and NO in the air requires high precision mid-infrared spectroscopy. The constructed sensors are able to measure concentration at ppb level. These sensors might be used for monitoring of atmospheric purity as well as for detection of explosives.

【 授权许可】

Unknown