摘要:
We present measurements of the time dependence of the Sr+(NH3)2 --> Sr+(NH3) + NH3 photodissociation process. Equal intensity pump and probe laser pulses obtained from a three-stage, synchronously pumped, picosecond dye laser amplifier are used to photodissociate mass-selected Sr+(NH3)2 parent ions. The Sr+(NH3) daughter and Sr+ granddaughter ions are detected with a reflectron mass spectrometer. Photodissociation is dominated by a process that has a 6.7 +/- 0.7 ns time constant.