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1.06μm激光的大气传输特性

Atmospheric transmission property of 1.06μm laser

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【作者】 杨洋赵远乔立杰刘世刚南京达

【Author】 Yang Yang\ \ Zhao Yuan\ \ Qiao Lijie\ \ Liu Shigang\ \ Nan Jingda (Harbin University of Industry,\ Harbin,\ China,\ 150001)

【机构】 哈尔滨工业大学

【摘要】 利用国内外现有资料对106μm激光的大气传输特性进行了分析归纳,得到了一些有价值的结论,并提出了一些推论。文中指出:106μm激光在大气中传输时其分子吸收效果可视为0,分子散射效果可忽略,气溶胶的吸收效果较小,故只需考虑气溶胶的散射效果;106μm激光在相同传输距离情况下在地面水平传输时衰减最大,而随着距地面高度的增加,衰减明显减少,至40km处衰减几乎为0。比较了106μm与106μm两种激光的传输特性,提出了106μm激光斜程大气传输时的透射率随仰角及程长的变化规律

【Abstract】 In this paper, the atmospheric transmission property of 1.06μm laser was analyzed by studying information both at home and abroad, and some valuable conclusions and inferences are presented. It is pointed out that, in the course of the atmospheric transmission of 1.06μm laser, the absorptive effect can be regarded as zero and the scattering effect of molecules can be negligible as for the gas dissolved gelatin. The scattering effect of the gas dissolved gelatin can be taken into consideration because of the scanty of absorptive effect. And with the same transmission distance, attenuation of 1.06μm laser is the largest when it is transmitted horizontally on the ground. And with the increase of the altitude of the earth′s surface the attenuation is reduced remarkably, at the point of 40 kilometer, attenuation nearly can be zero. Finally, the transmission rate of 1.06μm laser′s slope way atmospheric transmission which varies with its angle of alleviation and its range is given, the comparison of the transmission properties between 1.06μm and 10.6μm lasers is made.

  • 【文献出处】 红外与激光工程 ,INFRARED AND LASER ENGINEERING , 编辑部邮箱 ,1999年01期
  • 【分类号】TN241
  • 【被引频次】77
  • 【下载频次】944
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