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用超短激光研究CS_2和NH_3激发态寿命

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摘要 利用飞行时间质谱仪,用抽运-探测(pump-probe)方法对CS_2,NH_3等小分子进行了飞秒(fs)共振增强多光子电离质谱实验,在证实了前人实验结果的同时,通过多光子电离方法实时观察到了CS_2分子[3/2]6sσ_g(3Πg)态和3A2态及NH3分子'1A1'态的动力学过程,确定了相应激发态的寿命分别为(948±23),(153±10)和(937±93)fs,并提出了可能的退激发(de-excitation)机理.
出处 《科学通报》 EI CAS CSCD 北大核心 2002年第10期749-754,共6页 Chinese Science Bulletin
基金 国家重点基础研究发展规划(批准号:G1999075300) 国家自然科学基金(批准号:29833080 20003012 29973044)资助项目
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