Open AccessThe absorption spectrum study of the (4, 0) band in the b4Σ--a4Πi system of NO
Author(s) -
Lunhua Deng,
Chuanliang Li,
Yuhao Zhu,
Wei He,
Yangqin Chen
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.194208
Subject(s) - absorption spectroscopy , heterodyne (poetry) , glow discharge , materials science , absorption (acoustics) , residual , spectroscopy , spectral line , atomic physics , spectrum (functional analysis) , range (aeronautics) , analytical chemistry (journal) , optics , physics , chemistry , quantum mechanics , mathematics , plasma , algorithm , chromatography , acoustics , composite material
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.