Turn off MathJax
Article Contents
Bao Li, Li Wang, Bo Fang, Wei-xiong Zhao , Lun-hua Deng, Huai-liang Xu. Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy[J]. Chinese Journal of Chemical Physics .
Citation: Bao Li, Li Wang, Bo Fang, Wei-xiong Zhao , Lun-hua Deng, Huai-liang Xu. Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy[J]. Chinese Journal of Chemical Physics .

Population change of OH and H2O in water vapor glow discharge measured using concentration modulation spectroscopy

  • Accepted Date: 2020-07-02
  • Available Online: 2020-03-03
  • A distributed feedback (DFB) laser with a wavelength of 2.8 m was used to measure the species produced by water vapor glow discharge. Only the absorption spectra of OH radicals and transient H2O molecules were observed using concentration modulation (CM) spectroscopy. The intensities and orientations of the absorption peaks change with the demodulation phase, but the direction of one absorption peak of H2O is always opposite to the other peaks. The different spectral orientations of OH and H2O reflect the increase or decrease of the number of particles in the energy levels. If more transient species can be detected in the discharge process, the dynamics of excitation, ionization and decomposition of H2O can be better studied. This study shows that the demodulation phase relationship of CM spectrum can be used to study the population change of molecular energy levels.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (400) PDF downloads(10) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return