根据Mie氏理论对单个泡沫球的体积消光性能的研究  

Study of Volume Attenuation Performance of One Foam Bubble by Mie's Theory

作　　者：张玮[1] 时家明[1] 汪家春[1] 陆益敏[1] 马柳[1] 

机构地区：[1]电子工程学院安徽省红外与低温等离子体重点实验室,安徽合肥230037

出　　处：《红外》2008年第10期1-4,共4页Infrared

基　　金：安徽省重点实验室基金(2007A002002F)

摘　　要：为寻求光学多波段干扰的有效途径,研究了泡沫这种新型环保长效的宽波段干扰介质。采用Mie氏理论,计算分析了在不同泡沫溶液复折射率情况下,在军事上两种常用激光波长(1.06μm、10.60μm)处和红外波段(3μ～5μm、8μm～14μm)以及可见光波段(0.38μm～0.76μm)内单个泡沫球的体积消光性能与泡沫球尺寸和壁厚的关系。计算分析结果表明,在不同的波长处或波段内,具有不同泡沫溶液复折射率的最优泡沫球体积消光系数所对应的泡沫球尺寸及壁厚是不同的。.In order to search for an effective multi-band optical interference approach, the foam as a new environmentally friendly long effective wide band interference medium was studied. The relationship between the volume extinction coefficient （VEC） of one foam bubble and the size and wall thickness of the foam bubble in two military laser wavelengths （1.06μm and 10.6μm）, two infrared wavebands （3μm -5μm , 8μm-14μm） and the visible waveband （0.38μm - 0.76μm）. in the case of different foam solution refraction indexes was calculated and analyzed according to the Mie＇s scattering theory. The calculation and analysis results showed that for a foam bubble with a different refractive index, its size and wall thickness corresponding to its optimal volume extinction coefficient are different at different wavelengths or in different wavebands.

关 键 词：光电干扰 多波段 泡沫 MIE散射 消光 

分 类 号：O436[机械工程—光学工程]