飞秒泵浦和皮秒探测光谱研究He纳米液滴表面RbHe激基复合物的形成和弛豫
Formation and relaxation of RbHe exciplexes on He nanodroplets studied by femtosecond pump and picosecond probe spectroscopy
摘要：
振动分辨的光电离光谱的Rb He激基复合物形成的He纳米液滴使用飞秒泵浦-探测光谱与振幅整形探测脉冲。光谱的时间演化揭示了激基复合物的形成时间约为10 ps，随后振动弛豫延伸至> 1 ns。这表明，一个间接的，延时解吸过程的铷氦离开他的表面。
英文摘要：
Vibrationally resolved photoionization spectra of RbHe exciplexes forming on He nanodroplets are recorded using femtosecond pump-probe spectroscopy with amplitude-shaped probe pulses. The time-evolution of the spectra reveals an exciplex formation time ~10ps followed by vibrational relaxation extending up to >1ns. This points to an indirect, time-delayed desorption process of RbHe off the He surface.
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