摘要
通过双光子激发和探测后向受激辐射光谱的方法观察了钠分子高位单态2~1Π_g与C^1Π-x间的碰撞能量转移过程。理论上计算的C^1Π_x态的布居分布和由C^1Π_x→X^1∑_g^+跃迁产生的紫外受激辐射光谱,均与实验结果相符。还同时采用二台不同波长的染料激光器分别激发钠分子和钠原子,研究了不同激发态钠原子对钠分子高位激发态能量转移过程的影响。
The collisional energy transfer process between the high-lying singlet 2~1Ⅱ_g and C^1Ⅱ_u states in Na_2 molecules has been studied by using two-photon excitation and the measuring of backwards stimulated emission spectra. The theoretically calculated population distribution of the C^1Ⅱ_(?) state and the ultraviolet stimulated emission spectrum of the C^1Ⅱ_(?)→X^1Σ_R^+ band are in agreement with the experimental results. The influence of Na atoms in different excited states on the energy transfer process between the high-lying states of Na_2 molecules also has been studied, when Na_2 molecules and Na atoms are pumped by two dye lasers (in different wavelength regions) respectively.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1992年第6期25-28,5,共5页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金
关键词
碰撞能量转移
高位激发态
钠分子
Collisional energy transfer
Backward emission
High-lying state
