有机污染与缺陷耦合损伤的抑制技术研究

邵智聪; 凌秀兰; 陈旭彬; 陈鑫

doi:10.11884/HPLPB202436.240215

有机污染与缺陷耦合损伤的抑制技术研究

doi: 10.11884/HPLPB202436.240215

邵智聪^1,,
凌秀兰^1, ,,
陈旭彬¹,
陈鑫^{1, 2}

1.
中北大学信息与通信工程学院，太原 030051
2.
比亚迪汽车工业有限公司，西安 710000

基金项目: 国家自然科学基金项目（11774319）、山西省自然科学基金项目（202203021211084）

详细信息

作者简介:
邵智聪，2904666867@qq.com

通讯作者:
凌秀兰，nmlxlmiao@126.com。

中图分类号: O438
计量
- 文章访问数: 99
- HTML全文浏览量: 31
- PDF下载量: 14
- 被引次数: 0
出版历程
- 收稿日期: 2024-06-27
- 修回日期: 2024-10-18
- 录用日期: 2024-10-28
- 网络出版日期: 2024-11-02
- 刊出日期: 2024-11-08

Research on suppression technology for coupling damage of organic pollution and defect

Shao Zhicong^1
,,
Ling Xiulan^{1
, ,},
Chen Xubin¹,
Chen Xin^{1, 2}

1.
School of Information and Communication Engineering, North University of China, Taiyuan 030051, China
2.
BYD Auto Industry Company Limited, Xian 710000, China

摘要

摘要: 在真空和空间环境下，光学薄膜的抗激光损伤能力会极大地降低，主要是由于真空环境中放气有机污染与薄膜内部缺陷的耦合效应导致薄膜光场增强。而保护膜技术是一项能够提高光学薄膜抗激光损伤能力的有效措施。基于时域有限差分算法，分析了保护层技术对有机污染液滴与缺陷耦合诱导薄膜光场增强的抑制作用。分析结果显示TiO₂薄膜光场的峰值随着保护层厚度增加而下降。保护层折射率为有机污染液滴和膜层折射率的中间值时，光场增强的抑制作用最大。实验结果也对理论分析进行了验证。该研究加深了对真空中光学薄膜抗激光诱导损伤降级机制的理解，对提高真空环境中光学薄膜的抗激光损伤能力有一定参考价值。
- 薄膜缺陷 /
- 保护层 /
- 有机污染 /
- FDTD /
- 激光损伤
Abstract: In vacuum and space environment, laser damage resistance of the optical film reduces greatly. This is mainly due to the coupling effect of organic pollution in the vacuum environment and the internal defect of the film, which results in the enhancement of the light field of film. The protective film technology is an effective measure to improve the ability of optical film to resist laser damage. Based on the finite-difference time-domain algorithm, the inhibition effect of the protective layer on the light field enhancement induced by the coupling of organic pollution droplet and defect was analyzed. The analysis result shows that the light field peak value of TiO₂ film decreases with the increase of protective layer thickness. When the refractive index of the protective layer is the middle value of the organic pollution droplet refractive index and that of the film , the inhibition effect of light field enhancement is the greatest. The experimental results have verified the theoretical analysis. This study deepens the understanding of the mechanism of laser induced damage degradation of optical film in vacuum and has certain reference value for improving the laser damage resistance of optical film in vacuum environment.
- film defect /
- protective layer /
- organic pollution /
- FDTD /
- laser damage

HTML全文

图 1 单层TiO₂ 薄膜中有机污染液滴与缺陷的耦合镀制保护膜模型

Figure 1. Coupling of organic contamination droplet and defect in a single-layer TiO₂ film with a protective film model

下载: 全尺寸图片幻灯片

图 2 保护层对有机污染液滴与缺陷耦合光场分布的影响

Figure 2. Effect of protective layer on the distribution of electric field coupling between organic contamination droplet and defect

下载: 全尺寸图片幻灯片

图 3 不同厚度保护层下有机污染液滴与缺陷耦合的光场分布

Figure 3. Distribution of electric field coupling between the organic contamination droplet and the defect under different thickness protective layers

下载: 全尺寸图片幻灯片

图 4 不同折射率保护层下有机污染液滴与缺陷耦合的光场强度

Figure 4. Intensity of electric field coupling between the organic contamination droplet and the defect under different refractive index protective layers

下载: 全尺寸图片幻灯片

图 5 不同厚度保护层下薄膜的激光损伤阈值

Figure 5. Laser damage threshold of the thin film adding protective film of different thicknesses

下载: 全尺寸图片幻灯片

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