Preparation of Laser Filter for Shielding Electromagnetic Wave and Infrared
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Citation
张建付 [Zhang Jianfu], 王松林 [Wang Songlin], 杨崇民 [Yang Chongmin], 李明伟 [Li Mingwei], 米高园 [Mi Gaoyuan], 赵红军 [Zhao Hongjun]. 屏蔽电磁波和红外的激光滤光片研制 [Preparation of Laser Filter for Shielding Electromagnetic Wave and Infrared]. 光学技术 (Optical Technique), 2021, 47(5): 561-564.
Keywords
- 激光滤光片 / Laser filter
- 电磁屏蔽 / Electromagnetic shielding
- 红外屏蔽 / Infrared shielding
- 反红外 / Anti-infrared
- 透1064nm激光 / Transparent to 1064nm laser
- 金属薄膜诱导理论 / Metal thin film induction theory
- 多层薄膜干涉原理 / Multilayer thin film interference principle
- Ag薄膜 / Ag thin film / Silver thin film
- 膜系结构 / Film system structure
- 光谱性能 / Spectral performance
- 离子束辅助沉积 / Ion beam assisted deposition
- 离子束溅射 / Ion beam sputtering
- 膜厚控制 / Film thickness control
- 氧化 / Oxidation
- 1064nm激光波长 / 1064nm laser wavelength
- 透射率 / Transmittance
- 中长波红外波段 / Mid-long wave infrared band
- 反射率 / Reflectivity
Brief
This article details the design and fabrication of a laser filter utilizing a Ag thin film and dielectric layers (ZnS and YbF3) to achieve high transmittance at 1064nm, high reflectance in the mid-long wave infrared band, and efficient shielding of 18-36GHz electromagnetic waves using ion beam sputtering and ion beam assisted deposition techniques.
Summary
This paper describes the creation of a laser filter made with Ag, ZnS, and YbF3 thin films using ion beam sputtering and deposition to achieve high transmission at 1064nm, strong reflection of mid-long wave infrared, and effective shielding of 18-36GHz electromagnetic waves for military applications.
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