| 激光在海水中的衰减特性 |
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| 引用本文： | 钟晓春,李源慧.激光在海水中的衰减特性[J].电子科技大学学报(社会科学版),2010(4). |
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| 作者姓名： | 钟晓春 李源慧 |
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| 作者单位： | 西南交通大学物理科学与技术学院; |
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| 基金项目： | 国家自然科学基金(60572079) |
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| 摘 要： | 分析了光在海水中的吸收效应和散射效应;并通过使用半解析蒙特卡罗方法模拟了蓝绿激光在海水中的传输过程,获得前向散射光斑截面光子数随散射角平均余弦值、衰减系数、海水单次散射反照率和距离等参数变化而变化的规律,即随着传输距离的增加,前向散射光斑截面光子数增大,达到一定距离后,增加趋于平缓;光子数随着传输距离的增加呈类指数下降的趋势;相同传输距离、不同水质参数,光子数差异较大。研究结果对水下激光目标探测有一定的参考价值。
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| 关 键 词： | 吸收 衰减特性 蒙特卡罗方法 散射 |
Attenuation Characteristics of Laser in the Seawater |
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| ZHONG Xiao-chun , LI Yuan-hui.Attenuation Characteristics of Laser in the Seawater[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(4). |
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| Authors: | ZHONG Xiao-chun LI Yuan-hui |
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| Institution: | ZHONG Xiao-chun , LI Yuan-hui (School of Physical Science , Technology,Southwest Jiaotong University Chengdu 610031) |
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| Abstract: | The intensive absorption and scattering caused by seawater extremely affect the operating range and the detecting capability of underwater laser imaging technology. The absorption effect and the scattering effect of light in the seawater are analyzed. By using semi-analytical Monte Carlo algorithm,the process of how the blue-green laser transmits in the seawater is simulated. And the rules of how the photon number of the forward scatter light spot changes with the parameters,such as the average cosine of th... |
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| Keywords: | absorption attenuation characteristics Monte Carlo algorithm scattering |
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