| 激光器窗口的旋转效应 |
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| 引用本文： | 郭少锋,陆启生,程湘爱,曾学文,黎全,陈前荣. 激光器窗口的旋转效应[J]. 中国激光, 2004, 31(2): 45-148 |
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| 作者姓名： | 郭少锋 陆启生 程湘爱 曾学文 黎全 陈前荣 |
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| 作者单位： | 国防科技大学理学院定向能技术研究所,湖南,长沙,410073 |
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| 基金项目： | 国防预研项目 (批准号 :2 0 0 2AA82 4 0 90 1)资助课题 |
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| 摘 要： | 通过数值计算比较研究了静止、同心旋转、偏心旋转三种模式下高能激光器窗口工作过程中温度场和应力场的特征及其演变规律。研究表明，旋转式激光器窗口不但可使温度场和应力场轴对称化，且可降低最高温升、最大拉应力和最大剪应力；一定偏心距的偏心旋转可以起到消去拉应力、减小剪切应力的作用，从而使激光器窗口的抗激光损伤的能力有较大幅度的提高。
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| 关 键 词： | 激光技术 温度场 应力场 DF激光 激光器窗口 激光破坏阈值 |
| 收稿时间： | 2002-09-28 |
Rotation Effects of Intensive Laser Window |
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| GUO Shao-feng,LU Qi-sheng,CHENG Xiang-ai,ZENG Xue-wen,LI Quan,CHEN Qian-rong. Rotation Effects of Intensive Laser Window[J]. Chinese Journal of Lasers, 2004, 31(2): 45-148 |
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| Authors: | GUO Shao-feng LU Qi-sheng CHENG Xiang-ai ZENG Xue-wen LI Quan CHEN Qian-rong |
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| Abstract: | Theoretical model is established to study the effects of rotating window irratiated by high energy laser output. Laser induced thermal profiles and stress profiles are obtained by numerical computation.The results show that window rotation causes the axial symmetry of thermal stress, therfore the maxium tensile stress can decrease and the window can endure much more laser output if appropriate rotation mode is chosen. At last, the application perspective of rotating laser window is outlined. |
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| Keywords: | laser technique thermal profile stress profile DF laser laser window damage thresholds |
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