| 激光大气闪烁的高频谱特性 |
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| 引用本文： | 朱文越,马晓珊,饶瑞中. 激光大气闪烁的高频谱特性[J]. 强激光与粒子束, 2006, 18(11): 1793-1795 |
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| 作者姓名： | 朱文越 马晓珊 饶瑞中 |
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| 作者单位： | 中国科学院,安徽光学精密机械研究所,大气光学重点实验室,合肥,230031;中国科学院,安徽光学精密机械研究所,大气光学重点实验室,合肥,230031;中国科学院,安徽光学精密机械研究所,大气光学重点实验室,合肥,230031 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用三波长闪烁仪进行了大气边界层的光传输实验，结果表明：在相同的传播条件下，非平面波激光大气闪烁功率谱的高频部分与波长存在着一定的关系，功率谱无标度区间的斜率即标度指数是一个与湍流强度、波长等因素有关的函数，在满足弱起伏的条件下，标度指数一般与波长呈负相关，波长愈长则标度指数愈小，频谱下降的趋势愈快；波长愈短则标度指数愈大，频谱下降的趋势愈慢。
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| 关 键 词： | 激光大气闪烁 高频谱特性 标度指数 负相关 |
| 文章编号： | 1001-4322(2006)11-1793-03 |
| 收稿时间： | 2005-10-12 |
| 修稿时间： | 2006-05-18 |
High-frequency spectrum behavior of laser scintillation in turbulent atmosphere |
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| ZHU Wen-yue,MA Xiao-shan,RAO Rui-zhong. High-frequency spectrum behavior of laser scintillation in turbulent atmosphere[J]. High Power Laser and Particle Beams, 2006, 18(11): 1793-1795 |
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| Authors: | ZHU Wen-yue MA Xiao-shan RAO Rui-zhong |
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| Affiliation: | Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O.Box 1125, Hefei 230031, China |
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| Abstract: | Field experiments were performed upon the laser beam propagation using a three-wavelength scintillometer in the maritime atmospheric boundary layer.The results show that the high-frequency spectrum behavior has something to do with the wavelength.The slope of the scaling region (or the scaling exponent) is anti-correlated with the wavelength,that is to say,the longer the wavelength is,the less the scaling exponent is,and vice versa. |
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| Keywords: | Laser scintillation High-frequency spectrum behavior Scaling exponent Anti-correlation |
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