中国物理B ›› 2000, Vol. 9 ›› Issue (6): 432-435.doi: 10.1088/1009-1963/9/6/006

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

MEASUREMENT OF IONIC ENERGY FROM FEMTOSECOND LASER-HEATED ARGON CLUSTERS

雷安乐, 黎忠, 倪国权, 徐至展   

  1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:1999-11-04 修回日期:2000-01-27 出版日期:2005-06-12 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National "Climb" Program of China, the National Natural Science Foundation of China (Grant No. 29890210) and the Major Project for the Foundation Research of the Chinese Academy of Sciences (Grant No. KJ 951-B1-701).

MEASUREMENT OF IONIC ENERGY FROM FEMTOSECOND LASER-HEATED ARGON CLUSTERS

Lei An-le (雷安乐), Li Zhong (黎忠), Ni Guo-quan (倪国权), Xu Zhi-zhan (徐至展)   

  1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:1999-11-04 Revised:2000-01-27 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    Project supported by the National "Climb" Program of China, the National Natural Science Foundation of China (Grant No. 29890210) and the Major Project for the Foundation Research of the Chinese Academy of Sciences (Grant No. KJ 951-B1-701).

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摘要： The high backing pressure argon gases adiabatically expand into vacuum through a pulsed gas jet to nucleate into large clusters. The clusters were heated by a 45fs, 2.3×1016 Wcm-2 Ti: sapphire laser. The high energy of the ions produced in the cluster explosion was measured using time-of-flight spectrometry. The maximum and average kinetic energy of the ions were 0.2MeV and ～12.5keV, respectively, indicating that the femtosecond laser interactions with argon clusters are more energetic than interactions with atoms and molecules.

Abstract: The high backing pressure argon gases adiabatically expand into vacuum through a pulsed gas jet to nucleate into large clusters. The clusters were heated by a 45fs, 2.3×1016 Wcm-2 Ti: sapphire laser. The high energy of the ions produced in the cluster explosion was measured using time-of-flight spectrometry. The maximum and average kinetic energy of the ions were 0.2MeV and ～12.5keV, respectively, indicating that the femtosecond laser interactions with argon clusters are more energetic than interactions with atoms and molecules.

中图分类号:  (Optical properties of clusters)

  • 36.40.Vz
42.55.Rz (Doped-insulator lasers and other solid state lasers) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)