论文标题
飞秒激光脉冲的优化用于激发和旋转轨道介导的NARB二聚体的解离
Optimization of the Femtosecond Laser Impulse for Excitation and the Spin-Orbit Mediated Dissociation in the NaRb Dimer
论文作者
论文摘要
我们研究了任意时间依赖性外场的影响，研究了飞秒激光驱动的激发和NARB二聚体中自旋轨道介导的解离。在此过程中，使用fomtsecond激光脉冲和$ 1^3π$和$ 1^3π$和$ 2^1σ^+$状态的旋转轨道耦合，从地面三重态$ 1^3σ^+$激发到$ 1^3π$状态。优化了激光脉冲参数，以获得与第一个激发原子渐近线相关的电子状态的最大产量。我们观察到这些州的详细人口统计和权力衰减。最后，对种群振荡的分析使我们能够确定将分子倾倒到其绝对基态的最佳时间延迟。
We study the dynamics of multiple coupled states under the influence of an arbitrary time-dependent external field to investigate the femtosecond laser-driven excitation and the spin-orbit mediated dissociation in the NaRb dimer. In this process, the dimer is excited from the ground triplet state $1^3Σ^+$ to the $1^3Π$ state using the femtosecond laser impulse and the spin-orbit coupling between the $1^3Π$ and $2^1Σ^+$ states results in the singlet-triplet transition. The laser impulse parameters are optimised to obtain maximum yield in electronic states correlating with the first excited atomic asymptote. We observe the detailed population statistics and power-law decay of these states. Finally, the analysis of the population oscillations allows us to determine the optimal time delay for dumping the molecule to its absolute ground state.
