| 大粗糙度表面激光散射特性实验研究 |
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| 引用本文： | 韩香娥,吴振森.大粗糙度表面激光散射特性实验研究[J].激光技术,1997,21(3):151-155. |
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| 作者姓名： | 韩香娥 吴振森 |
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| 作者单位： | 1.西安电子科技大学物理系, 西安, 710071 |
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| 摘 要： | 本文利用激光散射自动测量系统,对经喷丸处理后的钢基粗糙表面及其喷漆表面的后向激光雷达散射截面(LRCS)进行了测量。测量波长分别为λ=633nm和λ=904nm.在λ=904nm,利用粗糙面电磁散射理论的基尔霍夫方法对上述样片进行了理论计算,其中将粗糙表面视为双尺度模型,根据驻留相位法和标量近似法理论计算双尺度模型随机粗糙表面的散射强度角分布,其理论值与实验测量结果有较好的吻合。
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| 关 键 词： | 激光雷达截面 粗糙面散射 后向散射 测量 光散射 |
| 收稿时间： | 1995-11-27 |
| 修稿时间： | 1996-03-12 |
Experiments study of laser scattering from very rough surfaces |
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| Han Xiange,Wu Zhensen,Zhang Xiangdong.Experiments study of laser scattering from very rough surfaces[J].Laser Technology,1997,21(3):151-155. |
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| Authors: | Han Xiange Wu Zhensen Zhang Xiangdong |
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| Abstract: | We present the experimental results on the laser back scattering characteristics,such as laser radar cross section,of very rough surface of steel and coated surface at λ=633nm and λ=904nm with a laser scattering automatic measurement system.Based on scattering theory of rough surface,we built up the double ruler model of the rough surface,and utilize phase method and scalar approximate method of Killhoff theory to theoretically calculate the angle distribution of laser back scattering intensity for a specimen of rough surface,at λ=904nm.The experimental results are well agreement with theoretical calculation. |
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| Keywords: | LRCS(Laser Radar Cross Section) rough surface scattering back scattering measurement light scattering |
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