典型文献
Nonresonant Multiphoton Ionization of Stark Decelerated Molecules by Femtosecond Laser Pulses
文献摘要：
Nonresonant multiphoton ionization by femtosecond laser pulses can be applied to any molecule virtually,thereby greatly enhancing the scope of Stark decelerated molecules.For comparison,we detect decelerated and trapped ammonia molecules using two different schemes:(ⅰ)nonresonant multiphoton ionization using intense femtosecond(fs)pulses in the near infrared,and(ⅱ)resonance-enhanced multiphoton ionization using nanosecond(ns)pulses from a tunable UV laser.The observed number of ions per shot for both schemes is similar.The fs laser detection scheme suffers from an increased background,which can be effectively eliminated by subsequent mass and velocity selection.To determine the detection volume of the ns laser detection scheme,we present measurements in which the decelerated ammonia molecules are bunched to a packet with a longitudinal spread well below～100 μm.It is concluded that the detection volume for the ns laser detection scheme is 1.5-2 times larger than that of the fs laser detection scheme.
文献关键词：
中图分类号：
作者姓名：
Congsen Meng;Zhihui Lü;Xiaowei Wang;Dongwen Zhang;Zengxiu Zhao;Jianmin Yuan
作者机构：
Department of Physics,National University of Defense Technology,Changsha 410073,China;Department of Physics,Graduate School of China Academy of Engineering Physics,Beijing 100193,China
文献出处：
引用格式：
[1]Congsen Meng;Zhihui Lü;Xiaowei Wang;Dongwen Zhang;Zengxiu Zhao;Jianmin Yuan-.Nonresonant Multiphoton Ionization of Stark Decelerated Molecules by Femtosecond Laser Pulses)[J].中国物理快报（英文版）,2022(11):22-25
A类：
Nonresonant,Decelerated,Pulses,nonresonant
B类：
Multiphoton,Ionization,Stark,Molecules,Femtosecond,Laser,multiphoton,ionization,femtosecond,laser,pulses,can,applied,any,virtually,thereby,greatly,enhancing,scope,decelerated,molecules,For,comparison,trapped,ammonia,using,two,different,schemes,intense,fs,near,infrared,resonance,enhanced,nanosecond,from,tunable,UV,observed,number,ions,per,shot,both,similar,detection,suffers,increased,background,which,effectively,eliminated,subsequent,mass,velocity,selection,To,determine,volume,present,measurements,bunched,packet,longitudinal,spread,well,below,It,concluded,that,times,larger,than
AB值：
0.508539
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