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Chin. Phys., 2000, Vol. 9(6): 432-435    DOI: 10.1088/1009-1963/9/6/006
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

MEASUREMENT OF IONIC ENERGY FROM FEMTOSECOND LASER-HEATED ARGON CLUSTERS

Lei An-le, Li Zhong, Ni Guo-quan, Xu Zhi-zhan
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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.
Received:  04 November 1999      Published:  12 June 2005
PACS:  36.40.Vz (Optical properties of clusters)  
  42.55.Rz (Doped-insulator lasers and other solid state lasers)  
  42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)  
Fund: 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).

Cite this article: 

Lei An-le, Li Zhong, Ni Guo-quan, Xu Zhi-zhan MEASUREMENT OF IONIC ENERGY FROM FEMTOSECOND LASER-HEATED ARGON CLUSTERS 2000 Chin. Phys. 9 432

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