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Experimental preparation of the initial state of Xe+-N laser-induced collisional charge transfer system: Multi-photon resonant ionization of xenon
Authors:Hongying Zhang  Zhenzhong Lu  Rongwei Fan  Deying Chen
Institution:(1) National Key Laboratory of Tunable Laser Technology, Institute of Opto-Electronics, Harbin Institute of Technology, Harbin, 150001, China
Abstract:A novel one-color Xe+-N laser induced collisional charge transfer system is proposed, and preparation of the initial state of the system, i.e., Xe+ is experimentally implemented through resonance enhanced multi-photon ionization (REMPI) by ~440 nm dye laser. The REMPI of Xe is experimentally investigated through time-of-flight (TOF) mass spectrometry and the intensity dependence of Xe+ is obtained, aiming at the preparation of Xe+. The resonant ionization spectra of Xe at ~440 nm under several different conditions are measured, showing the impacts of mode purification and source pressure on the resonant ionization spectrum. The results indicate the feasibility of preparing the initial state of the Xe+-N system by ~440 nm multi-photon resonant ionization, which prepares for a further experiment of laser-induced collisional charge transfer.
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