Plasma properties of pulsed laser ablation of GaAs
 
ManBao-Yuan[1] WangXiang-Tai[2] 等

关键词:等离子体 脉冲激光 砷化镓
 
主要内容:Simultaneous time and space-resolved emission spectrum from a Nd:YAG laser-ablated plasma on a GaAs target has quantitative information on the generation and the propagation of species in the plasma at 1 atm or lower pressures.The experimental results show that the characteristics of the species in plasma are strongly influenced by the ambient pressure.The time-of-flight distributions of Ga atoms exhibit twin-peak structure,which can be explained by recombination process.The mean projected ranges of As^+ ions in the atmosphere of different densities were calculated according to Ziegler' theory model and the slowing down processes of them were simulated by using a Monte Carlo simulation program TRIM80,The calculatedc results are consistent with the experimental.
 
《核技术:英文版》  1997,8(2).-98-102
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