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| 低真空中脉冲激光烧蚀凹腔的实验分析 | |
| 引用本文： | 彭丁,王象贤,李术明.低真空中脉冲激光烧蚀凹腔的实验分析[J].应用激光,2012,32(2):139-142. |
| 作者姓名： | 彭丁 王象贤 李术明 |
| 作者单位： | 彭丁:株洲出入境检验检疫局, 湖南 株洲 412007 王象贤:株洲出入境检验检疫局, 湖南 株洲 412007 李术明:株洲出入境检验检疫局, 湖南 株洲 412007 |
| 摘 要： | 在低真空条件下,利用Nd:YAG激光器产生的波长532nm、脉宽4.4ns的脉冲激光聚焦在置于低真空中的于钢铁样品,分析了激光作用后形成的凹腔形貌与激光能量密度、脉冲个数的关系。结果显示,凹腔的直径和深度随激光能量密度及脉冲个数的增大而增加,并且在能量密度小于20GW/cm~2及脉冲个数小于100的情况下凹腔的直径和深度增幅更为明显,反之,其增加趋势变缓。 |
| 关 键 词： | 低真空 激光烧蚀 凹腔 |
| 收稿时间： | 2011/8/17 |
Pulsed Laser Ablation Crater in Low Vacuum |
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| Peng Ding,Wang Xiangxian,Li Shuming.Pulsed Laser Ablation Crater in Low Vacuum[J].Applied Laser,2012,32(2):139-142. | |
| Authors: | Peng Ding Wang Xiangxian Li Shuming |
| Affiliation: | (Zhuzhou Entry-Exit Inspection and Quarantine Bureau,Zhuzhou,Hunan 412007,China) |
| Abstract: | A Nd∶YAG laser with 532 nm wavelength and 4.4 ns pulse width was used to ablate steel sample in low vacuum .The influence of laser irradiance and pulse number to the topography of ablation craters was studied. With the laser irradiance augmentation, the crater diameter and depth increase. When the laser irradiance less than 20 GW/cm2 and pulse number less than 100, the increase of crater diameter and depth was more observably, otherwise, the increase was slower. |
| Keywords: | low Vacuum laser Ablation crater |
| 本文献已被 CNKI 等数据库收录！ | |