| 透明激光陶瓷散射损耗分析 |
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| 引用本文： | 崔鑫,张彬,应建新,徐学珍.透明激光陶瓷散射损耗分析[J].强激光与粒子束,2011,23(8). |
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| 作者姓名： | 崔鑫 张彬 应建新 徐学珍 |
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| 作者单位： | 1. 四川大学 电子信息学院, 成都 610064;2. 华北光电技术研究所, 北京 100015 |
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| 基金项目： | 国家高技术发展计划项目 |
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| 摘 要： | 为了定量分析激光陶瓷中散射损耗对其透过率的影响，通过建立气孔尺寸分布模型，引入第二相体积比概念，并结合Mie散射、瑞利散射和全散射积分等理论，讨论了激光陶瓷中气孔、晶界第二相和表面粗糙度等引起的散射损耗对激光陶瓷透光性能的影响。研究结果表明：气孔率的大小将明显影响陶瓷透过率，且气孔尺寸分布决定了透过率包络的变化趋势；晶界和表面散射对透过率的影响主要集中在短波长处；在气孔率较低情况下，晶界第二相的存在是导致短波长处透过率急剧降低的主要因素。
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| 关 键 词： | 激光陶瓷 散射损耗 气孔率 晶界第二相 晶界表面粗糙度 |
| 收稿时间： | 1900-01-01; |
Analysis of scattering loss in transparent laser ceramics |
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| Cui Xin,Zhang Bin,Ying Jianxin,Xu Xuezhen.Analysis of scattering loss in transparent laser ceramics[J].High Power Laser and Particle Beams,2011,23(8). |
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| Authors: | Cui Xin Zhang Bin Ying Jianxin Xu Xuezhen |
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| Institution: | (1. School of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China;2. North China Research Institute of Electro-Optics, Beijing 100015, China) |
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| Abstract: | In order to analyze the effect of scattering loss on optical transmittance of transparent laser ceramics,the paper uses zeroth-order lognormal distributions(ZOLDs) to describe the scattering loss at different pore sizes and porosities,and introduces the definition of secondary phase volume ratio to calculate the number of scattering particles.The effects of scattering loss due to pores,grain boundary secondary phases and grain boundary surface roughness on optical transmittance of transparent laser ceramics... |
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| Keywords: | laser ceramics scattering loss porosity grain boundary secondary phase grain boundary surface roughness |
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