中国物理B ›› 2016, Vol. 25 ›› Issue (9): 94210-094210.doi: 10.1088/1674-1056/25/9/094210

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Spectroscopy system based on a single quantum cascade laser for simultaneous detection of CO and CO2

Min Wei(魏敏), Qing-Hao Ye(叶擎昊), Rui-Feng Kan(阚瑞峰), Bing Chen(陈兵), Chen-Guang Yang(杨晨光), Zhen-Yu Xu(许振宇), Xiang Chen(陈祥), Jun Ruan(阮俊), Xue-Li Fan(范雪丽), Wei Wang(王薇), Mai Hu(胡迈), Jian-Guo Liu(刘建国)   

  1. 1. Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China;
    2. University of Science and Technology of China, Hefei 230022, China;
    3. Shanghai Institute of Satellite Engineering, Shanghai 200050, China
  • 收稿日期:2016-02-23 修回日期:2016-04-13 出版日期:2016-09-05 发布日期:2016-09-05
  • 通讯作者: Jian-Guo Liu E-mail:jgliu@aiofm.ac.cn
  • 基金资助:

    Project supported by the National Key Scientific Instrument and Equipment Development Project of China (Grnat No. 2014YQ060537), the National Basic Research Program of China (Grant No. 2013CB632803), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA05040102), and the National Natural Science Foundation of China (Grant No. 41405134).

Spectroscopy system based on a single quantum cascade laser for simultaneous detection of CO and CO2

Min Wei(魏敏)1,2, Qing-Hao Ye(叶擎昊)3, Rui-Feng Kan(阚瑞峰)1, Bing Chen(陈兵)1, Chen-Guang Yang(杨晨光)1, Zhen-Yu Xu(许振宇)1, Xiang Chen(陈祥)1,2, Jun Ruan(阮俊)1, Xue-Li Fan(范雪丽)1, Wei Wang(王薇)1, Mai Hu(胡迈)1, Jian-Guo Liu(刘建国)1   

  1. 1. Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China;
    2. University of Science and Technology of China, Hefei 230022, China;
    3. Shanghai Institute of Satellite Engineering, Shanghai 200050, China
  • Received:2016-02-23 Revised:2016-04-13 Online:2016-09-05 Published:2016-09-05
  • Contact: Jian-Guo Liu E-mail:jgliu@aiofm.ac.cn
  • Supported by:

    Project supported by the National Key Scientific Instrument and Equipment Development Project of China (Grnat No. 2014YQ060537), the National Basic Research Program of China (Grant No. 2013CB632803), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA05040102), and the National Natural Science Foundation of China (Grant No. 41405134).

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摘要：

A quantum cascade laser (QCL) based system for simultaneous detection of CO and CO2 is developed. The QCL can scan over two neighboring CO (2055.40 cm-1) and CO2 (2055.16 cm-1) lines with a single current scan. The wavelength modulation spectroscopy (f = 20 kHz) is utilized to enhance the signal-to-noise ratio. A white cell with an effective optical path length of 74 m is used. The calibration of the sensor is performed and minimum detection limits of 1.3 ppb (1×10-9) for CO and 0.44 ppm (1×10-6) for CO2 are achieved.

关键词: infrared absorption spectroscope, quantum cascade lasers, wavelength modulation spectroscopy, greenhouse gas

Abstract:

A quantum cascade laser (QCL) based system for simultaneous detection of CO and CO2 is developed. The QCL can scan over two neighboring CO (2055.40 cm-1) and CO2 (2055.16 cm-1) lines with a single current scan. The wavelength modulation spectroscopy (f = 20 kHz) is utilized to enhance the signal-to-noise ratio. A white cell with an effective optical path length of 74 m is used. The calibration of the sensor is performed and minimum detection limits of 1.3 ppb (1×10-9) for CO and 0.44 ppm (1×10-6) for CO2 are achieved.

Key words: infrared absorption spectroscope, quantum cascade lasers, wavelength modulation spectroscopy, greenhouse gas

中图分类号:  (Semiconductor lasers; laser diodes)

  • 42.55.Px
42.62.-b (Laser applications) 71.35.Cc (Intrinsic properties of excitons; optical absorption spectra)