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| NO2分子的光学-光学双色双共振多光子离化谱 | |
| 引用本文： | 张贵银,靳一东. NO2分子的光学-光学双色双共振多光子离化谱[J]. 物理学报, 2008, 57(1): 132-136 |
| 作者姓名： | 张贵银 靳一东 |
| 作者单位： | 华北电力大学数理系，保定 071003 |
| 基金项目： | 国家自然科学基金(批准号：10647130)和华北电力大学博士科研基金(批准号：200612003)资助的课题. |
| 摘 要： | 以Nd:YAG激光器的二倍频输出光为抽运光，其三倍频输出抽运的光学参量发生/放大器输出光为探测光，利用光学-光学双色双共振多光子离化光谱技术(OODR-MPI),获得了NO2分子在605—675nm探测光波长范围内的多光子离化激发谱. 通过对NO2分子离化机理的分析，确定了在此波长区间，NO2分子经1+3+1双共振多光子过程离化，离化通道为NO2(X2A1)hν关键词：2')" href="#">NO2光学-光学双共振多光子离化谱里德伯态分子常数 |
| 关 键 词： | NO2 光学-光学双共振多光子离化谱 里德伯态 分子常数 |
| 文章编号： | 1000-3290-(2008)01-0132-05 |
| 收稿时间： | 2007-03-20 |
| 修稿时间： | 2007-05-09 |
Optical-optical double-color and double-resonance multiphoton ionization spectrum of NO2 |
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| Zhang Gui-Yin and Jin Yi-Dong. Optical-optical double-color and double-resonance multiphoton ionization spectrum of NO2[J]. Acta Physica Sinica, 2008, 57(1): 132-136 | |
| Authors: | Zhang Gui-Yin and Jin Yi-Dong |
| Abstract: | The optical-optical double resonance multiphoton ionization (OODR-MPI) technique has been applied to the study of the Rydberg states of nitrogen dioxide. The results show that NO2 molecule is ionized though a 1+3+1 double resonance multiphoton ionization process in 605—675nm probe wavelength region. The ionization pathway is: NO2(X2A1)hν1NO2(A2B2)3hν2NO2(3pσu)hν2NO22+e. The OODR-MPI spectrum corresponds to the excitation of NO2 3pσu Rydberg state by a three photon process. The value ω1=(1422.5±23.5) cm-1 and ω2＝(590.5±4.9) cm-1 of symmetric stretching and bending vibration frequencies of this Rydberg state are presented. The position of the band origin and the quantum defect of 3pσu Rydberg state are obtained to be (58331±71) cm-1 and 0.69, respectively. |
| Keywords: | NO2 OODR-MPI spectrum Rydberg state molecular constant |
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