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- W921271444 abstract "利用积分时间分辨荧光光谱方法,研究了RbH（X1Σ＋,v=0～2）与H2间的振动碰撞能量转移。在Rb-H2混合样品池中,泵浦激光双光子激发Rb原子至6D态,Rb（6D）与H2反应生成RbH（X1Σ＋）分子,探测激光延迟泵浦激光20ns,通过激光感应荧光光谱（LIF）的测量,确定了X1Σ＋（v=0～2,J）原生态的转动布居分布。增加检测激光与泵浦激光的延迟时间,测量了0～10μs延迟时间内各振动态时间分辨LIF强度,v=0,1能级荧光信号先增加后缓慢减弱,这是因为RbH在瞬间形成后通过碰撞转移和扩散而减少所致。通过速率方程分析,并利用振动能级上布居数变化与积分时间分辨荧光强度的关系,得到v=1→v=0和v=2→v=1的碰撞转移速率系数分别为（2.8±0.6）×10-11cm3·s-1和（3.4±0.8）×10-11cm3·s-1。而v=0,1,2的扩散率分别为（4.9±1.1）×105,（1.0±0.3）×105,（0.6±0.2）×105s-1。实验表明,v=2能级上布居数衰减率最大。" @default.
- W921271444 created "2016-06-24" @default.
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- W921271444 date "2011-01-01" @default.
- W921271444 modified "2023-10-15" @default.
- W921271444 title "RbH（X ^1Σ~＋,v=0～2）能级与H2碰撞振动能量转移" @default.
- W921271444 hasPublicationYear "2011" @default.
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