激发态铷分子的光离解

Photodissociation of the Excited Rb₂ (E) State

摘要: 研究了Rb(5 2 P3 /2 ) +Rb(5S) +nhν→Rb(72 DJ) +Rb(5S) +(n-1 )hν过程 ,激光频率ν调到Rb7D3 /2 →5P3 /2 跃迁谱线的两翼 2 0— 1 0 0cm-1,测量了精细结构谱线强度分支比I(7D3 /2 →5P1/2 ) /I(7D5/2 → 5P3 /2 ) .实验表明 ,原子相互作用势和非绝热效应在离解动力学中起关键作用. An experimental study of the process Rb(5 2 P 3/ 2 )+Rb(5S)+nhν→Rb(7 2 D J )+Rb(5S)+ (n-1)hν is reported, where nhν represents a radiation field of n photons hav ing frequency ν. The frequency ν is tuned in the wings of the Rb7D 3/2 →5P 3/2 transition. The branching ratio of I(7D 3/ 2 →5P 1/2 /I(7D 5/2 →5P 1/2 ) has been measured. The measurements show the interatomic potentials and nonadiabatic effects take important roles in the dissociation dynamics.

Abstract: An experimental study of the process Rb(5 2 P 3/ 2 )+Rb(5S)+nhν→Rb(7 2 D J )+Rb(5S)+ (n-1)hν is reported, where nhν represents a radiation field of n photons hav ing frequency ν. The frequency ν is tuned in the wings of the Rb7D 3/2 →5P 3/2 transition. The branching ratio of I(7D 3/ 2 →5P 1/2 /I(7D 5/2 →5P 1/2 ) has been measured. The measurements show the interatomic potentials and nonadiabatic effects take important roles in the dissociation dynamics.