摘要
本文主要总结1995年以来，大气光学重点实验室在激光大气传输研究方面取得的一些重要进展：（1）较系统地测量了影响激光大气传输的大气光学参数，积累了一批资料；（2）提出利用双差分吸收激光雷达测量大气臭氧垂直分布以及利用偏振光的散射测量同时决定大气气溶胶的复折射率和谱分布的新方法；（3）证明了有限时间大气相干长度测量值是一个随机量，并推导出其概率密度分布函数的表达式；（4）提出了描述湍流大气中激光光强起伏的概率分布及激光光斑统计特征的方法；（5）在实际大气湍流与模拟大气湍流中，第一次用实验方法得到了自适应光学相位校正效率与大气湍流强度的定量关系；（6）你建立了有一定特色的包括自适应相位校正的强激光大气传输四维数值计算程序，并得到了部分实验验证。
Some important progress on the research of the high-energy laser propagation inthe atmosphere carried out in the key laboratory for atmospheric optics since 1995 wassummarized as follows:1) Some optical parameters of the atmosphere which affect the high-energy laserpropagation were measured systematically, and many results were obtained.2) A method was proposed on measuring the vertical distribution of the atmosphericOzone with a dual differential absorption lidar, and another one on determinining simultaneously the complex refractive index and the size distribution of atmospheric aerosolsusing the scattering of the polarized light.3) It was verified that the atmospheric coherent length measured in a finite timeinterval is a random quantity. The probability density distribution of the quantity wasderived.4) Methods were proposed for the description of the probability density distributionof the laser intensity fluctuation in the atmosphere and the statistical characteristics ofthe turbulence-degraded intensity images.5) In both real and simulated turbulent atmospheres the relationship between thephase compensation efficiency of an adaptive optics system and the intensity of the atmospheric turbulence was obtained for the first time.6) A 4D code with certain features was developed for the calculation of high-energylaser propagation in the atmosphere including phase compensation by an adaptive opticssystem. Simulation results were verified partially by experimental data.
出处
《量子电子学报》
CAS
CSCD
1998年第2期114-133,共20页
Chinese Journal of Quantum Electronics
基金
国家高技术发展计划激光技术领域资助
