Optical–Optical Double Resonance Spectroscopy of I2 through the Parity Mixed Valence States
Optical–Optical Double Resonance Spectroscopy of I2 through the Parity Mixed Valence States
复制标题
通过宇称混合价态进行 I2 的光学-光学双共振光谱
DOI：
10.1246/bcsj.74.1605
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发表时间：
2001
影响因子：
4
通讯作者：
S. Motohiro
中科院分区：
文献类型：
--
作者：
T. Ishiwata;T. Yotsumoto;S. Motohiro
我们使用微扰促进的光学-光学双共振技术，通过B3的Π(0u+)-c1g宇称混合态，利用(1+1)光激发序列获得了I2的未退化离子对态。通过分析F0u+(3P0)、γ1U(3P2)和H1u(3P1)态的双共振第二步，阐明了中间B3态Π(0u+)-c1g态的g-u耦合方案。我们还能够通过g-u混合态填充δ2U(3P2)态，并提高其分子常数。利用平行γ1U(3P2)-c1g跃迁和垂直δ2U(3P2)-c1g跃迁之间的干涉效应，得到了它们的电子跃迁矩之比(μ||e/μ⊥e)∼5.5。
We used the perturbation-facilitated optical–optical double resonance technique to access the ungerade ion-pair states of I2 using the (1 + 1) photo-excitation sequence through the B3Π(0u+)–c1g parity mixing states. By analyzing the second step of the double resonance to the F0u+(3P0), γ1u(3P2), and H1u(3P1) states, the g–u coupling schemes were elucidated in the intermediate B3Π(0u+)–c1g state. We were also able to populate the δ2u(3P2) state through the g–u mixing state, and to improve its molecular constants. The interference effect between the parallel γ1u(3P2)–c1g and perpendicular δ2u(3P2)–c1g transitions was used to derive the ratio of their electronic transition moments, (μ||e/μ⊥e) ∼ 5.5.