Identification of hot band transitions of CH4 near 3000 cm-1

被引：9

作者：

Boursier, C ^{[1
]}

Menard, J ^{[1
]}

Marquette, A ^{[1
]}

Menard-Bourcin, F ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, UMR 7092, Lab Phys Mol Atmosphere & Astrophys, F-75005 Paris, France

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2006年 / 237卷 / 01期

关键词：

methane; hot bands; line assignments; double resonance; vibration-rotation spectra;

D O I：

10.1016/j.jms.2006.03.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Rovibrational transitions between vibrationally excited states of (CH4)-C-12 in the 3.4 mu m wavelength region are investigated by a pump-probe technique using an optical parametric oscillator as a pump and a tunable diode laser as a probe. Methane molecules are excited into selected levels of the 2 nu(3) state of the tetradecad and numerous transitions between pentad and tetradecad, and between tetradecad and triacontad, have been observed in this spectral range. Positions and assignments of transitions involving a level of the 2 nu(3)(F-2) substate are reported. Reliable energy values for 2 nu(3) (F-2) levels up to J = 6 are obtained, and the energies and assignments of a number of 3 nu(3) levels have been deduced allowing identification of IR lines in the 1.1 mu m region. (C) 2006 Elsevier Inc. All rights reserved.

引用

页码：104 / 114

页数：11

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