Ba+ (6p 2P) gas phase collisional quenching and intramultiplet mixing
Ba+ (6p 2P) gas phase collisional quenching and intramultiplet mixing
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Ba (6p 2P) 气相碰撞淬火和多重内部混合
DOI：
10.1063/1.446710
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发表时间：
1984
影响因子：
4.4
通讯作者：
J. Gelbwachs
中科院分区：
文献类型：
--
作者：
F. Hovis;J. Gelbwachs
通过激光泵浦6p 2 P3/2和测量稳态条件下6p 2 P3/2与6p 2 P1/2的布居比，研究了Ba+（6p 2 P1/2，3/2）的碰撞猝灭和多重态内混合.气相Ba+是通过Ba的双光子电离和BaI 2的多光子解离和电离的方法产生的。N_2、CH_4、C_2H_6和C_2H_4对6p ~（2/2）P_（1/2）的猝灭截面分别为17 ~ 2、≤3、≤6和120 ~ 2。N_2、CH_4、C_2H_6和C_2H_4的6p_2P_3/2→ 6p_6p_2P_1/2混合截面分别为24、70、100和80 A_2。这些横截面与碱中性粒子的横截面相当。
Collisional quenching and intramultiplet mixing of Ba+ (6p 2P1/2,3/2) has been studied by laser‐pumping 6p 2P3/2 and measurement of the 6p 2P3/2 to 6p 2P1/2 population ratio under steady‐state conditions. Gas phase Ba+ was generated by the methods of two photon ionization of Ba and by multiphoton dissociation and ionization of BaI2. The cross sections for quenching of 6p 2P1/2 by N2, CH4, C2H6, and C2H4 are 17 A2, ≤3, ≤6, and 120 A2, respectively. The cross sections for 6p 2P3/2→6p 6p 2P1/2 mixing by N2, CH4, C2H6, and C2H4 are 24, 70, 100, and 80 A2, respectively. These cross sections are comparable to those of the alkali neutrals.