The relation between composition in laser absorption region and ambient pressure  

作　　者：杨波 朱金荣 杨雁南 沈中华 陆建 倪晓武 

机构地区：[1]Department of Applied Physics, Nanjing University of Science and Technology [2]College of Physics Science and Technology, Yangzhou University [3]College of Science, Nanjing University of Aeronautics and Astronautics

出　　处：《Chinese Physics B》2008年第1期199-204,共6页中国物理B（英文版）

基　　金：Project supported by the National Science Foundation of China (Grant Nos 60578015 and 60208004);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No 20050288025)

摘　　要：In this paper, the compositions in a laser absorption region can be determined from the experiment of laser impulse coupling. When the ambient pressure varies from 9325 to 33325Pa, the compositions are vapour and plasma; while from 35325 to 101325Pa, they are ambient air and plasma. By analysing the relation between the degree of compression and the ambient pressure, the compositions can be determined and the variation of plasma can be explained.In this paper, the compositions in a laser absorption region can be determined from the experiment of laser impulse coupling. When the ambient pressure varies from 9325 to 33325Pa, the compositions are vapour and plasma; while from 35325 to 101325Pa, they are ambient air and plasma. By analysing the relation between the degree of compression and the ambient pressure, the compositions can be determined and the variation of plasma can be explained.

关 键 词：laser technology laser absorption region ambient pressure impulse coupling coefficient 

分 类 号：TN24[电子电信—物理电子学] O53[理学—等离子体物理]