摘要
利用激光大气传输4维程序,结合均方和半径分析方法,对氟化氘(DF)激光大气传输的定标规律进行了数值分析。得到了焦平面处63.2%环围能量半径的光斑扩展规律以及在焦平面上不同环围能量半径内的平均功率密度定标关系式。此定标关系不仅适用于大菲涅耳数、弱传输效应条件下,同时也适用于小菲涅耳数、强传输效应条件下DF高能激光大气传输,从而能够对激光大气传输的效果做出快速地预测和有效地评估。
The scaling laws about DF high energy laser propagation in real atmosphere are numerically analyzed by the fourdimension code of high energy laser in atmosphere combined with the square root of the sum of squares hypothesis. The scaling relations of the 63.2 ~ encircled energy beam radius spreading and the average energy intensity in different encircled energy radius are obtained in the focal plane. The scaling relations are applicable for DF high energy laser propagation in the condition of different Fresnel numbers and different propagation effects. Based on the relations, the atmospheric propagation effects of high energy laser can be predicted and estimated effectively.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2007年第12期1965-1969,共5页
High Power Laser and Particle Beams
基金
国家973计划项目资助课题
中国科学院合肥科学物质研究院计算中心资助课题
关键词
激光传输
定标规律
氟化氘激光
数值模拟
热晕效应
Laser propagation
DF laser
The scaling laws
Numerical simulation
Thermal blooming effects
