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The absorption spectrum study of the (4, 0) band in the b4Σ--a4Πi system of NO

Deng Lun-Hua Li Chuan-Liang Zhu Yuan-Yue He Wen-Yan Chen Yang-Qin

The absorption spectrum study of the (4, 0) band in the b4Σ--a4Πi system of NO

Deng Lun-Hua, Li Chuan-Liang, Zhu Yuan-Yue, He Wen-Yan, Chen Yang-Qin
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  • Received Date:  21 February 2012
  • Accepted Date:  23 March 2012

The absorption spectrum study of the (4, 0) band in the b4Σ--a4Πi system of NO

  • 1. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China;
  • 2. Taiyuan University of Science and Technology, Applied Science and Technology, Department of Physics, TaiYuan 030024, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant No. 11004062).

Abstract: The absorption spectrum of NO is analyzed in a range of 12530-12850 cm-1 using optical heterodyne concentration modulation spectroscopy in an AC glow discharge of He/NO mixture. Among all the spectral lines, 324 lines are assigned to the (4, 0) band and 267 ones are fitted to the Hamiltonians of the b4Σ--a4Πi system by a non-linear least-square fitting procedure. A residual (0.0071 cm-1) comparable to system error (0.0071 cm-1) is obtained. The main molecular constants are consistent with those reported in the literature and the fine structure constants are fitted.

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